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  <title>Condensation Temperature vs Depletion Ratio</title>
  <style>
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</head>
<body>
<div class="diagram-wrap">
  <div class="tabs" id="tabBar" role="tablist" aria-label="Temperature Ranges">
    <button class="tab" style="--c:#6b21a8;" onclick="setZone(0)">>1600 K</button>
    <button class="tab" style="--c:#1d4ed8;" onclick="setZone(1)">1400–1600 K</button>
    <button class="tab" style="--c:#0f766e;" onclick="setZone(2)">1200–1400 K</button>
    <button class="tab" style="--c:#b45309;" onclick="setZone(3)">700–1100 K</button>
    <button class="tab" style="--c:#e11d48;" onclick="setZone(4)">&lt;400 K</button>
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      <text x="65" y="17" font-size="12" font-weight="700" fill="#334155">1800 K (Hot)</text>
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        <text x="516" y="46" font-size="11" font-weight="700" fill="#e11d48" text-anchor="middle">Highly Volatile</text>
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      <text x="56" y="129" font-size="11.5" font-weight="700" fill="#0f172a" text-anchor="end">1.0</text>
      <text x="75" y="116" font-size="10" font-weight="600" fill="#64748b">= CI Chondrite reference</text>

      
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      <text x="56" y="182" font-size="11" font-weight="600" fill="#64748b" text-anchor="end">0.1</text>

      
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      <text x="56" y="236" font-size="11" font-weight="600" fill="#64748b" text-anchor="end">0.01</text>

      
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      <text x="56" y="289" font-size="11" font-weight="600" fill="#64748b" text-anchor="end">10⁻⁴</text>

      
      <text transform="rotate(-90)" x="-205" y="18" font-size="11.5" font-weight="700" fill="#334155" text-anchor="middle">Earth / CI Abundance Ratio</text>

      
      <path d="M 65 125 L 99 125 L 178 125 L 270 125 L 340 148 L 380 185 L 425 230 L 490 278 L 545 298 L 570 302 L 570 308 L 65 308 Z" fill="url(#areaGrad)"/>

      
      <path id="depletionCurve" d="M 65 125 L 99 125 L 178 125 L 270 125 C 295 125, 320 135, 350 160 C 385 190, 420 240, 475 274 C 505 292, 540 299, 570 302" fill="none" stroke="url(#curveGrad)" stroke-width="3.5" stroke-linecap="round"/>

      
      
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        <text x="270" y="143" font-size="11" font-weight="700" fill="#0f766e" text-anchor="middle">Mg, Si, Fe</text>
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      <text x="242" y="208" font-size="11" font-weight="700" fill="#b45309">Volatile Depletion →</text>
    </svg>
  </div>

  <div class="info-panel" id="infoPanel">
    Click any temperature group or button to explore element volatility & Earth depletion.
  </div>
</div>

<script>
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    },
    {
      title: "Refractory Lithophiles (1400–1600 K)",
      color: "#1d4ed8",
      desc: "Al, Ca, Ti condense at high temperatures into early mineral phases. Maintain primitive CI ratio (≈ 1.0)."
    },
    {
      title: "Main Silicates & Metals (1200–1400 K)",
      color: "#0f766e",
      desc: "Mg, Si, Fe constitute the bulk of Earth's mantle and core. Condense readily, showing negligible depletion (Ratio ≈ 1.0)."
    },
    {
      title: "Moderately Volatile (700–1100 K)",
      color: "#b45309",
      desc: "K, Na, Rb, Zn show substantial depletion (Ratio 0.1–0.01) caused by incomplete accretion or thermal loss in inner solar system."
    },
    {
      title: "Highly Volatile (<400 K)",
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</body>
</html>

Chondritic Meteorites and Bulk Earth Composition

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta name="aspect-ratio" content="4:3">
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, sans-serif;
      background: transparent;
      color: #1e2945;
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    /* Step Selector Tabs */
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      flex: 1;
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      font-size: 13px;
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      border-radius: 6px;
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      transition: all 0.25s ease;
      white-space: nowrap;
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    .step-btn.active {
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        gap: 10px;
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    /* Earth Mass Stack */
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      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      color: #64748b;
      text-align: center;
    }
    .mass-bar-col {
      flex: 1;
      display: flex;
      flex-direction: column;
      border-radius: 8px;
      overflow: hidden;
      min-height: 160px;
      border: 1px solid #cbd5e1;
    }
    .bse-seg {
      height: 67.5%;
      background: #0284c7;
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      padding: 4px;
      text-align: center;
      transition: opacity 0.3s ease;
    }
    .core-seg {
      height: 32.5%;
      background: #d97706;
      color: #ffffff;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      padding: 4px;
      text-align: center;
      transition: opacity 0.3s ease;
    }
    .seg-sub {
      font-size: 11px;
      font-weight: 500;
      opacity: 0.9;
    }

    /* Element Allocation Panel */
    .alloc-box {
      background: #f8fafc;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      padding: 10px;
      display: flex;
      flex-direction: column;
      justify-content: space-around;
      gap: 8px;
    }
    .alloc-row {
      display: flex;
      flex-direction: column;
      gap: 4px;
      transition: opacity 0.3s ease;
    }
    .alloc-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
      font-weight: 600;
    }
    .tag {
      font-size: 11px;
      font-weight: 700;
      padding: 2px 6px;
      border-radius: 4px;
    }
    .tag-rle { background: #e0f2fe; color: #0369a1; }
    .tag-sid { background: #fef3c7; color: #b45309; }
    .tag-vol { background: #f1f5f9; color: #475569; }

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      border: 1px solid #cbd5e1;
      font-size: 11px;
      font-weight: 700;
      color: #ffffff;
    }
    .bar-bse {
      background: #0284c7;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: width 0.5s ease;
      white-space: nowrap;
      overflow: hidden;
    }
    .bar-core {
      background: #d97706;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: width 0.5s ease;
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      background: #94a3b8;
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      transition: width 0.5s ease;
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      padding: 0 4px;
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      gap: 12px;
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      font-weight: 600;
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      display: flex;
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      gap: 4px;
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      width: 10px;
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      cursor: pointer;
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      align-items: center;
      gap: 4px;
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    .play-btn:active {
      background: #f1f5f9;
    }

    /* Highlight Dimming */
    .dimmed {
      opacity: 0.25;
    }
  </style>
</head>
<body>

  
  <div class="stepper">
    <button class="step-btn active" data-step="0">All Elements</button>
    <button class="step-btn" data-step="1">RLEs</button>
    <button class="step-btn" data-step="2">Fe &amp; Ni</button>
    <button class="step-btn" data-step="3">Volatiles</button>
  </div>

  
  <div class="grid">
    
    <div class="earth-box" id="earthBox">
      <div class="box-title">Bulk Earth Mass</div>
      <div class="mass-bar-col">
        <div class="bse-seg" id="massBse">
          <span>BSE</span>
          <span class="seg-sub">67.5%</span>
        </div>
        <div class="core-seg" id="massCore">
          <span>Core</span>
          <span class="seg-sub">32.5%</span>
        </div>
      </div>
    </div>

    
    <div class="alloc-box">
      
      <div class="alloc-row" id="rowRle">
        <div class="alloc-header">
          <span>Al, Ca, Ti, Sm, Nd</span>
          <span class="tag tag-rle">Refractory Lithophile</span>
        </div>
        <div class="alloc-bar">
          <div class="bar-bse" style="width: 100%;">100% BSE</div>
          <div class="bar-core" style="width: 0%;"></div>
        </div>
      </div>

      
      <div class="alloc-row" id="rowFe">
        <div class="alloc-header">
          <span>Iron (Fe)</span>
          <span class="tag tag-sid">Siderophile</span>
        </div>
        <div class="alloc-bar">
          <div class="bar-bse" style="width: 14%;">14%</div>
          <div class="bar-core" style="width: 86%;">86% Core</div>
        </div>
      </div>

      
      <div class="alloc-row" id="rowNi">
        <div class="alloc-header">
          <span>Nickel (Ni)</span>
          <span class="tag tag-sid">Siderophile</span>
        </div>
        <div class="alloc-bar">
          <div class="bar-bse" style="width: 6%;">6%</div>
          <div class="bar-core" style="width: 94%;">94% Core</div>
        </div>
      </div>

      
      <div class="alloc-row" id="rowVol">
        <div class="alloc-header">
          <span>Potassium (K), Rb</span>
          <span class="tag tag-vol">Volatile Lithophile</span>
        </div>
        <div class="alloc-bar">
          <div class="bar-bse" style="width: 25%;">BSE (25%)</div>
          <div class="bar-depleted" style="width: 75%;">Depleted (~75%)</div>
        </div>
      </div>
    </div>
  </div>

  
  <div class="controls">
    <div class="legend">
      <div class="leg-item"><div class="dot dot-bse"></div> Silicate (BSE)</div>
      <div class="leg-item"><div class="dot dot-core"></div> Core</div>
      <div class="leg-item"><div class="dot dot-dep"></div> Volatilization Loss</div>
    </div>
    <button class="play-btn" id="playBtn">⏸ Auto</button>
  </div>

  <script src="{{VENDOR_CDN}}/classace-diagram.js"></script>
  <script>
    const buttons = $$('.step-btn');
    const massBse = $('#massBse');
    const massCore = $('#massCore');
    const rowRle = $('#rowRle');
    const rowFe = $('#rowFe');
    const rowNi = $('#rowNi');
    const rowVol = $('#rowVol');
    const playBtn = $('#playBtn');

    let currentStep = 0;
    let timer = null;
    let isPlaying = true;

    function applyStep(step) {
      currentStep = step;
      buttons.forEach((btn, idx) => {
        btn.classList.toggle('active', idx === step);
      });

      // Reset dimming
      massBse.classList.remove('dimmed');
      massCore.classList.remove('dimmed');
      rowRle.classList.remove('dimmed');
      rowFe.classList.remove('dimmed');
      rowNi.classList.remove('dimmed');
      rowVol.classList.remove('dimmed');

      if (step === 1) { // RLEs
        massCore.classList.add('dimmed');
        rowFe.classList.add('dimmed');
        rowNi.classList.add('dimmed');
        rowVol.classList.add('dimmed');
      } else if (step === 2) { // Fe & Ni
        rowRle.classList.add('dimmed');
        rowVol.classList.add('dimmed');
      } else if (step === 3) { // Volatiles
        massCore.classList.add('dimmed');
        rowRle.classList.add('dimmed');
        rowFe.classList.add('dimmed');
        rowNi.classList.add('dimmed');
      }
    }

    function nextStep() {
      applyStep((currentStep + 1) % 4);
    }

    function startAuto() {
      if (timer) clearInterval(timer);
      timer = setInterval(nextStep, 3500);
      isPlaying = true;
      playBtn.textContent = '⏸ Auto';
    }

    function stopAuto() {
      if (timer) clearInterval(timer);
      isPlaying = false;
      playBtn.textContent = '▶ Play';
    }

    buttons.forEach((btn, idx) => {
      onTap(btn, () => {
        stopAuto();
        applyStep(idx);
      });
    });

    onTap(playBtn, () => {
      if (isPlaying) {
        stopAuto();
      } else {
        nextStep();
        startAuto();
      }
    });

    // Start auto loop
    startAuto();
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-tap-highlight-color: transparent;
    }
    body {
      width: 100%;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      background: #f8fafc;
      color: #1e293b;
      padding: 12px 10px;
      display: flex;
      flex-direction: column;
      align-items: center;
      min-height: 100%;
    }

    /* Filter Controls */
    .controls {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      justify-content: center;
      margin-bottom: 12px;
      width: 100%;
      max-width: 620px;
    }
    .btn {
      background: #ffffff;
      border: 1px solid #cbd5e1;
      border-radius: 20px;
      padding: 5px 12px;
      font-size: 12px;
      font-weight: 600;
      color: #475569;
      cursor: pointer;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }
    .btn .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
    }
    .btn:hover {
      border-color: #94a3b8;
      background: #f1f5f9;
    }
    .btn.active {
      background: #0f172a;
      color: #ffffff;
      border-color: #0f172a;
    }

    /* Charts Layout */
    .charts-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      width: 100%;
      max-width: 660px;
      align-items: start;
    }

    .chart-card {
      background: transparent;
      border: none;
      padding: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
    }

    .chart-header {
      text-align: center;
      margin-bottom: 6px;
      width: 100%;
    }

    .chart-title {
      font-size: 13px;
      font-weight: 700;
      color: #0f172a;
    }
    .chart-sub {
      font-size: 11px;
      color: #64748b;
      font-weight: 500;
    }

    .chart-body {
      display: flex;
      flex-direction: column;
      align-items: center;
      width: 100%;
    }

    .svg-wrap {
      position: relative;
      width: 100%;
      max-width: 140px;
      aspect-ratio: 1 / 1;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    svg {
      width: 100%;
      height: 100%;
      transform: rotate(-90deg);
      border-radius: 50%;
    }

    .center-label {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      pointer-events: none;
      text-align: center;
    }
    .center-val {
      font-size: 15px;
      font-weight: 800;
      line-height: 1.1;
      color: #0f172a;
    }
    .center-elem {
      font-size: 10.5px;
      font-weight: 600;
      color: #64748b;
    }

    path.slice {
      cursor: pointer;
      transition: opacity 0.2s ease, stroke-width 0.2s ease;
      stroke: #f8fafc;
      stroke-width: 1.5;
    }
    path.slice.dimmed {
      opacity: 0.2;
    }
    path.slice.highlighted {
      opacity: 1;
      stroke: #0f172a;
      stroke-width: 2.5;
    }

    /* Breakdown list */
    .mini-breakdown {
      margin-top: 8px;
      width: 100%;
      max-width: 160px;
      display: flex;
      flex-direction: column;
      gap: 2px;
      font-size: 11px;
    }
    .elem-row {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 2px 4px;
      border-radius: 4px;
      cursor: pointer;
      transition: background 0.15s ease, opacity 0.15s ease;
    }
    .elem-row:hover {
      background: #e2e8f0;
    }
    .elem-row.dimmed {
      opacity: 0.2;
    }
    .elem-row.highlighted {
      background: #e2e8f0;
      font-weight: 700;
    }
    .elem-tag {
      display: flex;
      align-items: center;
      gap: 5px;
      color: #334155;
    }
    .elem-swatch {
      width: 7px;
      height: 7px;
      border-radius: 2px;
      flex-shrink: 0;
    }
    .elem-num {
      font-weight: 600;
      color: #0f172a;
    }

    /* Mobile Responsive Layout */
    @media (max-width: 500px) {
      .charts-grid {
        grid-template-columns: 1fr;
        gap: 14px;
      }
      .chart-card {
        padding-bottom: 10px;
        border-bottom: 1px solid #e2e8f0;
      }
      .chart-card:last-child {
        border-bottom: none;
        padding-bottom: 0;
      }
      .chart-body {
        flex-direction: row;
        justify-content: center;
        align-items: center;
        gap: 18px;
      }
      .svg-wrap {
        width: 110px;
        max-width: 110px;
      }
      .mini-breakdown {
        margin-top: 0;
        max-width: 170px;
        flex: 1;
      }
    }
  </style>
</head>
<body>

  
  <div class="controls">
    <button class="btn active" data-elem="ALL">All Elements</button>
    <button class="btn" data-elem="Fe"><span class="dot" style="background:#d97706"></span>Iron (Fe)</button>
    <button class="btn" data-elem="O"><span class="dot" style="background:#0284c7"></span>Oxygen (O)</button>
    <button class="btn" data-elem="Si"><span class="dot" style="background:#059669"></span>Silicon (Si)</button>
    <button class="btn" data-elem="Mg"><span class="dot" style="background:#7c3aed"></span>Magnesium (Mg)</button>
  </div>

  
  <div class="charts-grid">
    
    <div class="chart-card" id="card-crust">
      <div class="chart-header">
        <div class="chart-title">Earth's Crust</div>
        <div class="chart-sub">Top ~1% Volume</div>
      </div>
      <div class="chart-body">
        <div class="svg-wrap">
          <svg viewBox="0 0 100 100" id="svg-crust"></svg>
          <div class="center-label" id="center-crust">
            <div class="center-val">Crust</div>
            <div class="center-elem">Elements</div>
          </div>
        </div>
        <div class="mini-breakdown" id="list-crust"></div>
      </div>
    </div>

    
    <div class="chart-card" id="card-bse">
      <div class="chart-header">
        <div class="chart-title">Silicate Earth</div>
        <div class="chart-sub">Mantle + Crust</div>
      </div>
      <div class="chart-body">
        <div class="svg-wrap">
          <svg viewBox="0 0 100 100" id="svg-bse"></svg>
          <div class="center-label" id="center-bse">
            <div class="center-val">BSE</div>
            <div class="center-elem">Silicates</div>
          </div>
        </div>
        <div class="mini-breakdown" id="list-bse"></div>
      </div>
    </div>

    
    <div class="chart-card" id="card-bulk">
      <div class="chart-header">
        <div class="chart-title">Bulk Earth</div>
        <div class="chart-sub">Entire Planet</div>
      </div>
      <div class="chart-body">
        <div class="svg-wrap">
          <svg viewBox="0 0 100 100" id="svg-bulk"></svg>
          <div class="center-label" id="center-bulk">
            <div class="center-val">Total</div>
            <div class="center-elem">Planet</div>
          </div>
        </div>
        <div class="mini-breakdown" id="list-bulk"></div>
      </div>
    </div>
  </div>

  <script>
    const COLORS = {
      'Fe': '#d97706', // Iron
      'O':  '#0284c7', // Oxygen
      'Si': '#059669', // Silicon
      'Mg': '#7c3aed', // Magnesium
      'Al': '#ec4899', // Aluminum
      'Ca': '#f59e0b', // Calcium
      'Na': '#06b6d4', // Sodium
      'K':  '#84cc16', // Potassium
      'Ni': '#e11d48', // Nickel
      'Other': '#94a3b8'
    };

    const DATA = {
      crust: [
        { id: 'O', label: 'Oxygen', pct: 46.0 },
        { id: 'Si', label: 'Silicon', pct: 28.0 },
        { id: 'Al', label: 'Aluminum', pct: 8.0 },
        { id: 'Fe', label: 'Iron', pct: 5.0 },
        { id: 'Ca', label: 'Calcium', pct: 4.0 },
        { id: 'Na', label: 'Sodium', pct: 2.5 },
        { id: 'Mg', label: 'Magnesium', pct: 2.0 },
        { id: 'K',  label: 'Potassium', pct: 2.0 },
        { id: 'Other', label: 'Other', pct: 2.5 }
      ],
      bse: [
        { id: 'O', label: 'Oxygen', pct: 44.0 },
        { id: 'Mg', label: 'Magnesium', pct: 22.8 },
        { id: 'Si', label: 'Silicon', pct: 21.0 },
        { id: 'Fe', label: 'Iron', pct: 6.3 },
        { id: 'Ca', label: 'Calcium', pct: 2.5 },
        { id: 'Al', label: 'Aluminum', pct: 2.2 },
        { id: 'Other', label: 'Other', pct: 1.2 }
      ],
      bulk: [
        { id: 'Fe', label: 'Iron', pct: 32.1 },
        { id: 'O', label: 'Oxygen', pct: 30.1 },
        { id: 'Si', label: 'Silicon', pct: 15.1 },
        { id: 'Mg', label: 'Magnesium', pct: 13.9 },
        { id: 'Ni', label: 'Nickel', pct: 1.8 },
        { id: 'Ca', label: 'Calcium', pct: 1.5 },
        { id: 'Al', label: 'Aluminum', pct: 1.4 },
        { id: 'Other', label: 'Others', pct: 4.1 }
      ]
    };

    let activeFilter = 'ALL';

    function polarToCartesian(cx, cy, r, angleDeg) {
      const rad = (angleDeg * Math.PI) / 180.0;
      return {
        x: cx + r * Math.cos(rad),
        y: cy + r * Math.sin(rad)
      };
    }

    function createDonutSegment(cx, cy, rOuter, rInner, startAngle, endAngle) {
      if (endAngle - startAngle >= 359.999) {
        endAngle = startAngle + 359.999;
      }
      const p1 = polarToCartesian(cx, cy, rOuter, startAngle);
      const p2 = polarToCartesian(cx, cy, rOuter, endAngle);
      const p3 = polarToCartesian(cx, cy, rInner, endAngle);
      const p4 = polarToCartesian(cx, cy, rInner, startAngle);
      const largeArc = endAngle - startAngle > 180 ? 1 : 0;

      return `M ${p1.x} ${p1.y} A ${rOuter} ${rOuter} 0 ${largeArc} 1 ${p2.x} ${p2.y} L ${p3.x} ${p3.y} A ${rInner} ${rInner} 0 ${largeArc} 0 ${p4.x} ${p4.y} Z`;
    }

    function renderRing(svgId, listId, items) {
      const svg = document.getElementById(svgId);
      const list = document.getElementById(listId);
      svg.innerHTML = '';
      list.innerHTML = '';

      const total = items.reduce((acc, it) => acc + it.pct, 0);
      let currAngle = 0;

      items.forEach(item => {
        const sweep = (item.pct / total) * 360;
        const start = currAngle;
        const end = currAngle + sweep;
        currAngle = end;

        const path = document.createElementNS('http://www.w3.org/2000/svg', 'path');
        path.setAttribute('d', createDonutSegment(50, 50, 46, 26, start, end));
        path.setAttribute('fill', COLORS[item.id] || COLORS.Other);
        path.setAttribute('class', 'slice');
        path.dataset.elem = item.id;
        path.dataset.pct = item.pct + '%';
        path.dataset.label = item.label;

        path.addEventListener('click', () => setFilter(item.id));
        svg.appendChild(path);

        // Breakdown list item
        if (item.pct >= 2.0 || item.id === 'Fe' || item.id === 'Mg') {
          const row = document.createElement('div');
          row.className = 'elem-row';
          row.dataset.elem = item.id;
          row.innerHTML = `
            <div class="elem-tag">
              <span class="elem-swatch" style="background:${COLORS[item.id] || COLORS.Other}"></span>
              <span>${item.label} (${item.id})</span>
            </div>
            <span class="elem-num">${item.pct}%</span>
          `;
          row.addEventListener('click', () => setFilter(item.id));
          list.appendChild(row);
        }
      });
    }

    function setFilter(elemId) {
      if (activeFilter === elemId && elemId !== 'ALL') {
        activeFilter = 'ALL';
      } else {
        activeFilter = elemId;
      }

      // Update button styles
      document.querySelectorAll('.btn').forEach(btn => {
        if (btn.dataset.elem === activeFilter) {
          btn.classList.add('active');
        } else {
          btn.classList.remove('active');
        }
      });

      // Update paths and list items
      document.querySelectorAll('.slice').forEach(slice => {
        const match = activeFilter === 'ALL' || slice.dataset.elem === activeFilter;
        slice.classList.toggle('dimmed', !match);
        slice.classList.toggle('highlighted', activeFilter !== 'ALL' && match);
      });

      document.querySelectorAll('.elem-row').forEach(row => {
        const match = activeFilter === 'ALL' || row.dataset.elem === activeFilter;
        row.classList.toggle('dimmed', !match);
        row.classList.toggle('highlighted', activeFilter !== 'ALL' && match);
      });

      // Update center texts
      updateCenterLabels(activeFilter);
    }

    function updateCenterLabels(elem) {
      ['crust', 'bse', 'bulk'].forEach(key => {
        const center = document.getElementById(`center-${key}`);
        const valEl = center.querySelector('.center-val');
        const elemEl = center.querySelector('.center-elem');

        if (elem === 'ALL') {
          if (key === 'crust') { valEl.textContent = 'Crust'; elemEl.textContent = 'Elements'; }
          if (key === 'bse')   { valEl.textContent = 'BSE'; elemEl.textContent = 'Silicates'; }
          if (key === 'bulk')  { valEl.textContent = 'Total'; elemEl.textContent = 'Bulk Earth'; }
        } else {
          const found = DATA[key].find(d => d.id === elem);
          if (found) {
            valEl.textContent = `${found.pct}%`;
            elemEl.textContent = found.label;
          } else {
            valEl.textContent = '< 0.5%';
            elemEl.textContent = elem;
          }
        }
      });
    }

    // Initialize charts
    renderRing('svg-crust', 'list-crust', DATA.crust);
    renderRing('svg-bse', 'list-bse', DATA.bse);
    renderRing('svg-bulk', 'list-bulk', DATA.bulk);

    // Button event listeners
    document.querySelectorAll('.btn').forEach(btn => {
      btn.addEventListener('click', () => {
        setFilter(btn.dataset.elem);
      });
    });
  </script>
</body>
</html>

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Sun vs CI Chondrite Elemental Abundances</title>
  <style>
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
      background: #ffffff;
      color: #0f172a;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: flex-start;
      width: 100%;
      padding: 8px 10px 12px;
      user-select: none;
      overflow-x: hidden;
    }

    .header-area {
      text-align: center;
      margin-bottom: 6px;
      width: 100%;
      max-width: 440px;
    }

    .title {
      font-size: 13.5px;
      font-weight: 700;
      color: #0f172a;
      line-height: 1.3;
    }

    .controls {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 6px;
      margin-bottom: 6px;
      z-index: 10;
    }

    .btn {
      background: #f1f5f9;
      border: 1px solid #94a3b8;
      border-radius: 6px;
      padding: 4px 10px;
      font-size: 11.5px;
      font-weight: 600;
      color: #334155;
      cursor: pointer;
      transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    }

    .btn:hover {
      background: #e2e8f0;
      color: #0f172a;
    }

    .btn.active {
      background: #1e40af;
      border-color: #1e40af;
      color: #ffffff;
    }

    .chart-container {
      position: relative;
      width: 100%;
      max-width: 440px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto;
    }

    svg {
      width: 100%;
      height: auto;
      display: block;
    }

    .axis-line { stroke: #334155; stroke-width: 1.75; }
    .grid-line { stroke: #e2e8f0; stroke-width: 1; }
    .diag-line { stroke: #64748b; stroke-width: 1.5; stroke-dasharray: 4 4; }
    
    .axis-label {
      font-size: 10.5px;
      font-weight: 700;
      fill: #0f172a;
      text-anchor: middle;
    }

    .tick-label {
      font-size: 9.5px;
      font-weight: 600;
      fill: #334155;
      font-family: inherit;
    }

    .diag-label {
      fill: #475569;
      font-size: 9px;
      font-weight: 700;
      paint-order: stroke fill;
      stroke: #ffffff;
      stroke-width: 3.5px;
      stroke-linejoin: round;
      letter-spacing: 0.2px;
    }

    .element-group {
      cursor: pointer;
      transition: opacity 0.2s ease;
    }

    .dot {
      transition: r 0.15s ease, stroke-width 0.15s ease;
    }

    .element-group:hover .dot {
      r: 6.5;
      stroke-width: 2.5;
    }

    .dot-label {
      font-size: 9.5px;
      font-weight: 800;
      pointer-events: none;
      paint-order: stroke fill;
      stroke: #ffffff;
      stroke-width: 3px;
      stroke-linejoin: round;
    }

    .refractory-dot { fill: #2563eb; stroke: #1e3a8a; stroke-width: 1.5; }
    .refractory-text { fill: #1e40af; }
    
    .volatile-dot { fill: #dc2626; stroke: #991b1b; stroke-width: 1.5; }
    .volatile-text { fill: #b91c1c; }

    .dimmed { opacity: 0.12 !important; }
    
    .tooltip {
      position: absolute;
      background: #0f172a;
      color: #ffffff;
      padding: 6px 10px;
      border-radius: 6px;
      font-size: 11px;
      line-height: 1.35;
      pointer-events: none;
      opacity: 0;
      transition: opacity 0.15s ease;
      white-space: nowrap;
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
      z-index: 20;
    }

    .tooltip-tag {
      display: inline-block;
      padding: 1px 5px;
      border-radius: 3px;
      font-size: 9px;
      font-weight: 700;
      margin-top: 2px;
      text-transform: uppercase;
    }
    .tag-refractory { background: #1d4ed8; color: #fff; }
    .tag-volatile { background: #b91c1c; color: #fff; }
  </style>
</head>
<body>

  <div class="header-area">
    <div class="title">Solar vs. Meteoritic (CI Chondrite) Abundances</div>
  </div>

  <div class="controls">
    <button class="btn active" id="btn-all" onclick="filterGroup('all')">All Elements</button>
    <button class="btn" id="btn-ref" onclick="filterGroup('refractory')">Refractory (Rock)</button>
    <button class="btn" id="btn-vol" onclick="filterGroup('volatile')">Volatiles (Gas)</button>
  </div>

  <div class="chart-container">
    <svg viewBox="0 0 380 320" id="plot" aria-label="Abundance scatter plot">
      
      <g id="grid"></g>

      
      <line id="line-1-1" class="diag-line" />
      
      <text x="145" y="222" class="diag-label" transform="rotate(-30, 145, 222)" text-anchor="middle">1:1 Ratio (Condensation Match)</text>

      
      <line x1="52" y1="265" x2="360" y2="265" class="axis-line" />
      <line x1="52" y1="20" x2="52" y2="265" class="axis-line" />

      
      <text x="206" y="306" class="axis-label">CI Chondrite Abundance (Log relative to 10⁶ Si)</text>
      <text x="-142" y="14" class="axis-label" transform="rotate(-90)">Sun Photosphere Abundance (Log)</text>

      
      <g id="data-points"></g>
    </svg>
    <div class="tooltip" id="tooltip"></div>
  </div>

  <script>
    const data = [
      // Refractory / Lithophile / Siderophile (Sit on 1:1 line)
      // Custom offsets & text-anchors to eliminate overlaps in dense clusters
      { s: 'Ba', name: 'Barium',    x: 0.6, y: 0.6, type: 'refractory', dx: -7, dy: 3,   ta: 'end' },
      { s: 'Sc', name: 'Scandium',  x: 1.5, y: 1.5, type: 'refractory', dx: -7, dy: -4,  ta: 'end' },
      { s: 'Ti', name: 'Titanium',  x: 3.4, y: 3.4, type: 'refractory', dx: -7, dy: -5,  ta: 'end' },
      { s: 'K',  name: 'Potassium', x: 3.6, y: 3.6, type: 'refractory', dx: 7,  dy: -5,  ta: 'start' },
      { s: 'Cr', name: 'Chromium',  x: 4.1, y: 4.1, type: 'refractory', dx: -7, dy: -5,  ta: 'end' },
      { s: 'Ni', name: 'Nickel',    x: 4.7, y: 4.7, type: 'refractory', dx: 7,  dy: 11,  ta: 'start' },
      { s: 'Ca', name: 'Calcium',   x: 4.8, y: 4.8, type: 'refractory', dx: -7, dy: -4,  ta: 'end' },
      { s: 'Al', name: 'Aluminum',  x: 4.9, y: 4.9, type: 'refractory', dx: 7,  dy: -7,  ta: 'start' },
      { s: 'Fe', name: 'Iron',      x: 5.9, y: 5.9, type: 'refractory', dx: 7,  dy: 11,  ta: 'start' },
      { s: 'Mg', name: 'Magnesium', x: 6.0, y: 6.0, type: 'refractory', dx: -7, dy: -6,  ta: 'end' },
      { s: 'Si', name: 'Silicon',   x: 6.0, y: 6.0, type: 'refractory', dx: 7,  dy: -5,  ta: 'start' },

      // Volatiles / Atmophile (Depleted in CI solids, enriched in Sun gas)
      { s: 'Ar', name: 'Argon',    x: 0.2, y: 5.0,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'Ne', name: 'Neon',     x: 0.5, y: 6.6,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'He', name: 'Helium',   x: 1.0, y: 9.4,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'N',  name: 'Nitrogen', x: 4.8, y: 6.5,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'C',  name: 'Carbon',   x: 5.8, y: 7.0,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'O',  name: 'Oxygen',   x: 6.9, y: 7.4,  type: 'volatile', dx: 7,  dy: 3,  ta: 'start' },
      { s: 'H',  name: 'Hydrogen', x: 7.0, y: 10.4, type: 'volatile', dx: 7,  dy: 3,  ta: 'start' }
    ];

    const xMin = 0, xMax = 8;
    const yMin = 0, yMax = 11;
    const plotLeft = 52, plotRight = 360;
    const plotBottom = 265, plotTop = 20;

    function scaleX(val) {
      return plotLeft + ((val - xMin) / (xMax - xMin)) * (plotRight - plotLeft);
    }

    function scaleY(val) {
      return plotBottom - ((val - yMin) / (yMax - yMin)) * (plotBottom - plotTop);
    }

    const supMap = { '0':'⁰', '1':'¹', '2':'²', '3':'³', '4':'⁴', '5':'⁵', '6':'⁶', '7':'⁷', '8':'⁸', '9':'⁹', '10':'¹⁰' };

    // Render Grid & Ticks
    const gridG = document.getElementById('grid');
    for (let x = 0; x <= 8; x += 2) {
      const px = scaleX(x);
      gridG.innerHTML += `
        <line x1="${px}" y1="${plotTop}" x2="${px}" y2="${plotBottom}" class="grid-line" />
        <line x1="${px}" y1="${plotBottom}" x2="${px}" y2="${plotBottom + 4}" stroke="#334155" stroke-width="1.25" />
        <text x="${px}" y="${plotBottom + 16}" class="tick-label" text-anchor="middle">10${supMap[x]}</text>
      `;
    }
    for (let y = 0; y <= 10; y += 2) {
      const py = scaleY(y);
      gridG.innerHTML += `
        <line x1="${plotLeft}" y1="${py}" x2="${plotRight}" y2="${py}" class="grid-line" />
        <line x1="${plotLeft - 4}" y1="${py}" x2="${plotLeft}" y2="${py}" stroke="#334155" stroke-width="1.25" />
        <text x="${plotLeft - 7}" y="${py + 3.5}" class="tick-label" text-anchor="end">10${supMap[y]}</text>
      `;
    }

    // 1:1 diagonal line
    const l1 = document.getElementById('line-1-1');
    l1.setAttribute('x1', scaleX(0));
    l1.setAttribute('y1', scaleY(0));
    l1.setAttribute('x2', scaleX(8));
    l1.setAttribute('y2', scaleY(8));

    // Render Points
    const pointsG = document.getElementById('data-points');
    const tooltip = document.getElementById('tooltip');

    data.forEach(d => {
      const cx = scaleX(d.x);
      const cy = scaleY(d.y);

      const g = document.createElementNS('http://www.w3.org/2000/svg', 'g');
      g.setAttribute('class', `element-group ${d.type}`);

      const circle = document.createElementNS('http://www.w3.org/2000/svg', 'circle');
      circle.setAttribute('cx', cx);
      circle.setAttribute('cy', cy);
      circle.setAttribute('r', 5);
      circle.setAttribute('class', `dot ${d.type}-dot`);

      const text = document.createElementNS('http://www.w3.org/2000/svg', 'text');
      text.setAttribute('x', cx + d.dx);
      text.setAttribute('y', cy + d.dy);
      text.setAttribute('text-anchor', d.ta);
      text.setAttribute('class', `dot-label ${d.type}-text`);
      text.textContent = d.s;

      g.appendChild(circle);
      g.appendChild(text);

      g.addEventListener('pointerenter', (e) => showTooltip(e, d));
      g.addEventListener('pointerleave', hideTooltip);
      g.addEventListener('click', (e) => showTooltip(e, d));

      pointsG.appendChild(g);
    });

    function showTooltip(e, d) {
      const isRef = d.type === 'refractory';
      tooltip.innerHTML = `
        <strong>${d.name} (${d.s})</strong><br>
        <span class="tooltip-tag ${isRef ? 'tag-refractory' : 'tag-volatile'}">${isRef ? 'Refractory (Rock)' : 'Volatile (Gas)'}</span><br>
        CI Abundance: 10<sup>${d.x}</sup> | Sun: 10<sup>${d.y}</sup><br>
        <span style="color:#cbd5e1;font-size:10px;">${isRef ? 'Identical ratio: condensed completely into solids.' : 'Depleted in meteorites; remained as solar gas.'}</span>
      `;
      tooltip.style.opacity = '1';
      
      const containerRect = document.querySelector('.chart-container').getBoundingClientRect();
      const clientX = e.clientX;
      const clientY = e.clientY;
      
      let left = clientX - containerRect.left + 12;
      let top = clientY - containerRect.top - 42;

      if (left + 200 > containerRect.width) {
        left = clientX - containerRect.left - 205;
      }
      if (left < 6) left = 6;
      if (top < 6) {
        top = clientY - containerRect.top + 16;
      }

      tooltip.style.left = `${left}px`;
      tooltip.style.top = `${top}px`;
    }

    function hideTooltip() {
      tooltip.style.opacity = '0';
    }

    document.addEventListener('pointerdown', (e) => {
      if (!e.target.closest('.element-group')) {
        hideTooltip();
      }
    });

    function filterGroup(group) {
      document.querySelectorAll('.btn').forEach(b => b.classList.remove('active'));
      if (group === 'all') document.getElementById('btn-all').classList.add('active');
      if (group === 'refractory') document.getElementById('btn-ref').classList.add('active');
      if (group === 'volatile') document.getElementById('btn-vol').classList.add('active');

      document.querySelectorAll('.element-group').forEach(el => {
        if (group === 'all' || el.classList.contains(group)) {
          el.classList.remove('dimmed');
        } else {
          el.classList.add('dimmed');
        }
      });
    }
  </script>
</body>
</html>

OGS.13.ESS.1

Aligned learning resources

Related diagrams