<caption>Table S6: Results of LA-MC-ICP-MS Lu-Hf analyses of zircon performed during the session at GUF</caption>

The spots are labelled as RVX-N(-U) with "RVX" the sample name, "N" the Lu-Hf analysis number, "U" the U-Pb analytical spot closest to the domain analysed.

<table><thead><tr><th></th><th><sup>176</sup>Yb<sup>a</sup><br/><sup>177</sup>Hf</th><th>±2σ<br/>(abs.)</th><th><sup>176</sup>Lu<sup>a</sup><br/><sup>177</sup>Hf</th><th>±2σ<br/>(abs.)</th><th><sup>176</sup>Hf<br/><sup>177</sup>Hf</th><th>±2σ<br/>(abs.)</th><th><sup>180</sup>Hf<br/><sup>177</sup>Hf</th><th>±2σ<br/>(abs.)</th><th>Sig<sub>Hf</sub><sup>b</sup><br/>(V)</th><th><sup>176</sup>Hf<br/><sup>177</sup>Hf</th><th>±2σ<br/>(abs.)</th><th>Date<br/>(Ma)</th><th>±2σ<br/>(Ma)</th><th>Conc.<br/>(%)<br/>λ =</th><th><sup>176</sup>Hf<sup>c</sup><br/><sup>177</sup>Hf<sub>App</sub><br/>1.87E-11</th><th>εHf<sub>(app)</sub><sup>c</sup><br/>(abs.)</th><th>±2σ<br/>(abs.)</th><th>Int. age<br/>(Ma)</th><th>±2σ<br/>(Ma)</th><th><sup>176</sup>Hf<sup>d</sup><br/><sup>177</sup>Hf<sub>(int)</sub></th><th>εHf<sub>(t)</sub><sup>d</sup><br/>(abs.)</th><th>±2σ<br/>(abs.)</th></tr></thead><tbody><tr><td colspan="21" style="text-align: left; font-weight: bold;">Sample RV-1</td></tr><tr><td>RV1-12a-a09</td><td>0.0271</td><td>0.0023</td><td>0.00092</td><td>0.00006</td><td>1.46719</td><td>0.00007</td><td>1.88641</td><td>0.00019</td><td>6</td><td><strong>0.282759</strong></td><td>0.000041</td><td>547</td><td>7</td><td>97</td><td><strong>0.282749</strong></td><td><strong>11.0</strong></td><td><strong>1.5</strong></td><td>546</td><td>5</td><td><strong>0.282749</strong></td><td><strong>10.9</strong></td><td>1.5</td></tr><tr><td>RV1-16a-a18</td><td>0.0145</td><td>0.0013</td><td>0.00053</td><td>0.00003</td><td>1.46716</td><td>0.00006</td><td>1.88662</td><td>0.00017</td><td>6</td><td><strong>0.282757</strong></td><td>0.000035</td><td>549</td><td>6</td><td>102</td><td><strong>0.282752</strong></td><td><strong>11.1</strong></td><td><strong>1.2</strong></td><td>546</td><td>5</td><td><strong>0.282752</strong></td><td><strong>11.0</strong></td><td>1.2</td></tr><tr><td>RV1-20a-a24</td><td>0.0201</td><td>0.0023</td><td>0.00076</td><td>0.00008</td><td>1.46737</td><td>0.00014</td><td>1.88620</td><td>0.00051</td><td>6</td><td><strong>0.282748</strong></td><td>0.000056</td><td>546</td><td>7</td><td>98</td><td><strong>0.282740</strong></td><td><strong>10.6</strong></td><td><strong>2.0</strong></td><td>546</td><td>5</td><td><strong>0.282740</strong></td><td><strong>10.6</strong></td><td>2.0</td></tr><tr><td>RV1-23a-a25</td><td>0.0287</td><td>0.0024</td><td>0.00100</td><td>0.00006</td><td>1.46717</td><td>0.00007</td><td>1.88623</td><td>0.00021</td><td>6</td><td><strong>0.282755</strong></td><td>0.000045</td><td>545</td><td>6</td><td>99</td><td><strong>0.282744</strong></td><td><strong>10.7</strong></td><td><strong>1.6</strong></td><td>546</td><td>5</td><td><strong>0.282744</strong></td><td><strong>10.7</strong></td><td>1.6</td></tr><tr><td>RV1-28a-a31</td><td>0.0232</td><td>0.0020</td><td>0.00089</td><td>0.00006</td><td>1.46716</td><td>0.00005</td><td>1.88674</td><td>0.00014</td><td>7</td><td><strong>0.282750</strong></td><td>0.000035</td><td>547</td><td>7</td><td>96</td><td><strong>0.282741</strong></td><td><strong>10.6</strong></td><td><strong>1.2</strong></td><td>546</td><td>5</td><td><strong>0.282741</strong></td><td><strong>10.6</strong></td><td>1.2</td></tr><tr><td>RV1-28b-a39</td><td>0.0343</td><td>0.0032</td><td>0.00117</td><td>0.00009</td><td>1.46723</td><td>0.00007</td><td>1.88682</td><td>0.00015</td><td>7</td><td><strong>0.282761</strong></td><td>0.000036</td><td>540</td><td>6</td><td>97</td><td><strong>0.282749</strong></td><td><strong>10.8</strong></td><td><strong>1.3</strong></td><td>546</td><td>5</td><td><strong>0.282749</strong></td><td><strong>10.9</strong></td><td>1.3</td></tr><tr><td>RV1-30a-a40</td><td>0.0237</td><td>0.0019</td><td>0.00092</td><td>0.00006</td><td>1.46705</td><td>0.00007</td><td>1.88675</td><td>0.00018</td><td>5</td><td><strong>0.282749</strong></td><td>0.000046</td><td>544</td><td>6</td><td>97</td><td><strong>0.282740</strong></td><td><strong>10.6</strong></td><td><strong>1.6</strong></td><td>546</td><td>5</td><td><strong>0.282740</strong></td><td><strong>10.6</strong></td><td>1.6</td></tr><tr><td>RV1-30b-a42</td><td>0.0231</td><td>0.0019</td><td>0.00085</td><td>0.00005</td><td>1.46724</td><td>0.00012</td><td>1.88677</td><td>0.00034</td><td>6</td><td><strong>0.282742</strong></td><td>0.000041</td><td>542</td><td>6</td><td>94</td><td><strong>0.282733</strong></td><td><strong>10.3</strong></td><td><strong>1.5</strong></td><td>546</td><td>5</td><td><strong>0.282733</strong></td><td><strong>10.4</strong></td><td>1.5</td></tr><tr><td>RV1-33a-a43</td><td>0.0282</td><td>0.0026</td><td>0.00104</td><td>0.00007</td><td>1.46712</td><td>0.00011</td><td>1.88693</td><td>0.00024</td><td>6</td><td><strong>0.282719</strong></td><td>0.000042</td><td>543</td><td>6</td><td>98</td><td><strong>0.282709</strong></td><td><strong>9.4</strong></td><td><strong>1.5</strong></td><td>546</td><td>5</td><td><strong>0.282709</strong></td><td><strong>9.5</strong></td><td>1.5</td></tr><tr><td>RV1-3a</td><td>0.0230</td><td>0.0022</td><td>0.00089</td><td>0.00007</td><td>1.46748</td><td>0.00016</td><td>1.88524</td><td>0.00061</td><td>6</td><td><strong>0.282740</strong></td><td>0.000049</td><td>546</td><td>5</td><td></td><td><strong>0.282731</strong></td><td><strong>10.3</strong></td><td><strong>1.7</strong></td><td>546</td><td>5</td><td><strong>0.282731</strong></td><td><strong>10.3</strong></td><td>1.7</td></tr><tr><td>RV1-46a</td><td>0.0148</td><td>0.0012</td><td>0.00055</td><td>0.00003</td><td>1.46724</td><td>0.00006</td><td>1.88646</td><td>0.00018</td><td>5</td><td><strong>0.282736</strong></td><td>0.000045</td><td>546</td><td>5</td><td></td><td><strong>0.282730</strong></td><td><strong>10.2</strong></td><td><strong>1.6</strong></td><td>546</td><td>5</td><td><strong>0.282730</strong></td><td><strong>10.2</strong></td><td>1.6</td></tr><tr><td>RV1-46b</td><td>0.0366</td><td>0.0032</td><td>0.00126</td><td>0.00009</td><td>1.46723</td><td>0.00007</td><td>1.88644</td><td>0.00011</td><td>7</td><td><strong>0.282760</strong></td><td>0.000040</td><td>546</td><td>5</td><td></td><td><strong>0.282748</strong></td><td><strong>10.9</strong></td><td><strong>1.4</strong></td><td>546</td><td>5</td><td><strong>0.282748</strong></td><td><strong>10.9</strong></td><td>1.4</td></tr><tr><td>RV1-47a-a6</td><td>0.0156</td><td>0.0013</td><td>0.00062</td><td>0.00004</td><td>1.46726</td><td>0.00004</td><td>1.88673</td><td>0.00013</td><td>9</td><td><strong>0.282721</strong></td><td>0.000032</td><td>542</td><td>6</td><td>99</td><td><strong>0.282715</strong></td><td><strong>9.6</strong></td><td><strong>1.1</strong></td><td>546</td><td>5</td><td><strong>0.282715</strong></td><td><strong>9.7</strong></td><td>1.1</td></tr><tr><td>RV1-8a-a08</td><td>0.0203</td><td>0.0016</td><td>0.00078</td><td>0.00005</td><td>1.46712</td><td>0.00009</td><td>1.88664</td><td>0.00024</td><td>7</td><td><strong>0.282737</strong></td><td>0.000038</td><td>545</td><td>6</td><td>97</td><td><strong>0.282729</strong></td><td><strong>10.2</strong></td><td><strong>1.3</strong></td><td>546</td><td>5</td><td><strong>0.282729</strong></td><td><strong>10.2</strong></td><td>1.3</td></tr><tr><td colspan="21" style="text-align: left; font-weight: bold;">Sample RV-2</td></tr><tr><td>RV2-49a-a48</td><td>0.0285</td><td>0.0025</td><td>0.00115</td><td>0.00008</td><td>1.46732</td><td>0.00007</td><td>1.88595</td><td>0.00017</td><td>6</td><td><strong>0.282775</strong></td><td>0.000041</td><td>536</td><td>6</td><td>96</td><td><strong>0.282764</strong></td><td><strong>11.2</strong></td><td><strong>1.4</strong></td><td>544</td><td>5</td><td><strong>0.282763</strong></td><td><strong>11.4</strong></td><td>1.4</td></tr><tr><td>RV2-49b-a49</td><td>0.0352</td><td>0.0029</td><td>0.00127</td><td>0.00008</td><td>1.46722</td><td>0.00006</td><td>1.88659</td><td>0.00013</td><td>9</td><td><strong>0.282765</strong></td><td>0.000033</td><td>535</td><td>5</td><td>95</td><td><strong>0.282752</strong></td><td><strong>10.8</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282752</strong></td><td><strong>11.0</strong></td><td>1.2</td></tr><tr><td>RV2-50a-a52</td><td>0.0315</td><td>0.0035</td><td>0.00121</td><td>0.00011</td><td>1.46704</td><td>0.00006</td><td>1.88662</td><td>0.00012</td><td>7</td><td><strong>0.282730</strong></td><td>0.000033</td><td>546</td><td>7</td><td>98</td><td><strong>0.282717</strong></td><td><strong>9.8</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282717</strong></td><td><strong>9.7</strong></td><td>1.2</td></tr><tr><td>RV2-51a-a53</td><td>0.0231</td><td>0.0030</td><td>0.00093</td><td>0.00011</td><td>1.46713</td><td>0.00009</td><td>1.88693</td><td>0.00022</td><td>8</td><td><strong>0.282732</strong></td><td>0.000035</td><td>541</td><td>7</td><td>97</td><td><strong>0.282723</strong></td><td><strong>9.9</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282723</strong></td><td><strong>9.9</strong></td><td>1.2</td></tr><tr><td>RV2-52a-a55</td><td>0.0175</td><td>0.0015</td><td>0.00071</td><td>0.00005</td><td>1.46729</td><td>0.00006</td><td>1.88631</td><td>0.00018</td><td>8</td><td><strong>0.282745</strong></td><td>0.000036</td><td>546</td><td>7</td><td>98</td><td><strong>0.282738</strong></td><td><strong>10.5</strong></td><td><strong>1.3</strong></td><td>544</td><td>5</td><td><strong>0.282738</strong></td><td><strong>10.5</strong></td><td>1.3</td></tr><tr><td>RV2-53a-a56</td><td>0.0265</td><td>0.0022</td><td>0.00101</td><td>0.00006</td><td>1.46712</td><td>0.00009</td><td>1.88715</td><td>0.00018</td><td>9</td><td><strong>0.282742</strong></td><td>0.000040</td><td>520</td><td>6</td><td>93</td><td><strong>0.282732</strong></td><td><strong>9.7</strong></td><td><strong>1.4</strong></td><td>544</td><td>5</td><td><strong>0.282732</strong></td><td><strong>10.3</strong></td><td>1.4</td></tr><tr><td>RV2-54a-a57</td><td>0.0139</td><td>0.0012</td><td>0.00053</td><td>0.00003</td><td>1.46718</td><td>0.00012</td><td>1.88658</td><td>0.00045</td><td>8</td><td><strong>0.282760</strong></td><td>0.000051</td><td>550</td><td>7</td><td>96</td><td><strong>0.282755</strong></td><td><strong>11.2</strong></td><td><strong>1.8</strong></td><td>544</td><td>5</td><td><strong>0.282755</strong></td><td><strong>11.1</strong></td><td>1.8</td></tr><tr><td>RV2-58a-a63</td><td>0.0264</td><td>0.0022</td><td>0.00105</td><td>0.00007</td><td>1.46717</td><td>0.00006</td><td>1.88634</td><td>0.00014</td><td>7</td><td><strong>0.282756</strong></td><td>0.000032</td><td>548</td><td>6</td><td>99</td><td><strong>0.282745</strong></td><td><strong>10.8</strong></td><td><strong>1.1</strong></td><td>544</td><td>5</td><td><strong>0.282745</strong></td><td><strong>10.7</strong></td><td>1.1</td></tr><tr><td>RV2-58b-a61</td><td>0.0398</td><td>0.0045</td><td>0.00141</td><td>0.00013</td><td>1.46723</td><td>0.00007</td><td>1.88642</td><td>0.00016</td><td>8</td><td><strong>0.282764</strong></td><td>0.000038</td><td>539</td><td>6</td><td>97</td><td><strong>0.282749</strong></td><td><strong>10.8</strong></td><td><strong>1.3</strong></td><td>544</td><td>5</td><td><strong>0.282749</strong></td><td><strong>10.9</strong></td><td>1.3</td></tr><tr><td>RV2-59a-a64</td><td>0.0307</td><td>0.0027</td><td>0.00107</td><td>0.00007</td><td>1.46717</td><td>0.00006</td><td>1.88628</td><td>0.00012</td><td>6</td><td><strong>0.282751</strong></td><td>0.000034</td><td>543</td><td>6</td><td>98</td><td><strong>0.282744</strong></td><td><strong>10.7</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282740</strong></td><td><strong>10.5</strong></td><td>1.2</td></tr><tr><td>RV2-60a-a72</td><td>0.0332</td><td>0.0033</td><td>0.00131</td><td>0.00010</td><td>1.46725</td><td>0.00007</td><td>1.88673</td><td>0.00013</td><td>7</td><td><strong>0.282747</strong></td><td>0.000031</td><td>548</td><td>6</td><td>102</td><td><strong>0.282733</strong></td><td><strong>10.4</strong></td><td><strong>1.1</strong></td><td>544</td><td>5</td><td><strong>0.282733</strong></td><td><strong>10.3</strong></td><td>1.1</td></tr><tr><td>RV2-60b-a73</td><td>0.0270</td><td>0.0033</td><td>0.00103</td><td>0.00010</td><td>1.46734</td><td>0.00007</td><td>1.88630</td><td>0.00020</td><td>7</td><td><strong>0.282798</strong></td><td>0.000044</td><td>535</td><td>5</td><td>97</td><td><strong>0.282788</strong></td><td><strong>12.0</strong></td><td><strong>1.5</strong></td><td>544</td><td>5</td><td><strong>0.282787</strong></td><td><strong>12.2</strong></td><td>1.5</td></tr><tr><td>RV2-61a-a74</td><td>0.0209</td><td>0.0017</td><td>0.00084</td><td>0.00005</td><td>1.46713</td><td>0.00006</td><td>1.88672</td><td>0.00020</td><td>7</td><td><strong>0.282738</strong></td><td>0.000032</td><td>539</td><td>7</td><td>97</td><td><strong>0.282730</strong></td><td><strong>10.1</strong></td><td><strong>1.1</strong></td><td>544</td><td>5</td><td><strong>0.282730</strong></td><td><strong>10.2</strong></td><td>1.1</td></tr><tr><td>RV2-63a-a88</td><td>0.0188</td><td>0.0016</td><td>0.00074</td><td>0.00005</td><td>1.46723</td><td>0.00005</td><td>1.88654</td><td>0.00014</td><td>8</td><td><strong>0.282759</strong></td><td>0.000032</td><td>550</td><td>7</td><td>100</td><td><strong>0.282751</strong></td><td><strong>11.1</strong></td><td><strong>1.1</strong></td><td>544</td><td>5</td><td><strong>0.282751</strong></td><td><strong>10.9</strong></td><td>1.1</td></tr><tr><td>RV2-66a-a82</td><td>0.0264</td><td>0.0023</td><td>0.00093</td><td>0.00012</td><td>1.46717</td><td>0.00009</td><td>1.88638</td><td>0.00018</td><td>8</td><td><strong>0.282737</strong></td><td>0.000049</td><td>541</td><td>6</td><td>99</td><td><strong>0.282728</strong></td><td><strong>10.1</strong></td><td><strong>1.7</strong></td><td>544</td><td>5</td><td><strong>0.282728</strong></td><td><strong>10.1</strong></td><td>1.7</td></tr><tr><td>RV2-72a-a75</td><td>0.0376</td><td>0.0031</td><td>0.00144</td><td>0.00009</td><td>1.46723</td><td>0.00007</td><td>1.88660</td><td>0.00015</td><td>8</td><td><strong>0.282748</strong></td><td>0.000034</td><td>544</td><td>6</td><td>99</td><td><strong>0.282734</strong></td><td><strong>10.3</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282734</strong></td><td><strong>10.3</strong></td><td>1.2</td></tr><tr><td>RV2-75a-a89</td><td>0.0249</td><td>0.0025</td><td>0.00098</td><td>0.00008</td><td>1.46720</td><td>0.00008</td><td>1.88663</td><td>0.00019</td><td>8</td><td><strong>0.282761</strong></td><td>0.000037</td><td>544</td><td>6</td><td>99</td><td><strong>0.282751</strong></td><td><strong>10.9</strong></td><td><strong>1.3</strong></td><td>544</td><td>5</td><td><strong>0.282751</strong></td><td><strong>10.9</strong></td><td>1.3</td></tr><tr><td>RV2-59a-a65</td><td>0.0307</td><td>0.0027</td><td>0.00107</td><td>0.00007</td><td>1.46717</td><td>0.00006</td><td>1.88628</td><td>0.00012</td><td>6</td><td><strong>0.282751</strong></td><td>0.000034</td><td>361</td><td>4</td><td>98</td><td><strong>0.282744</strong></td><td><strong>6.6</strong></td><td><strong>1.2</strong></td><td>544</td><td>5</td><td><strong>0.282744</strong></td><td><strong>10.7</strong></td><td>1.2</td></tr></tbody></table>

Avg 0.282736 10.5
2 SE 0.000026 0.9

Avg 0.282743 10.6
2 SE 0.000034 1.2
Table S6 (cont.): Results of LA-MC-ICP-MS Lu-Hf analyses of zircon performed during the session at GUF

(a) ¹⁷⁶Yb/¹⁷⁷Hf = (¹⁷⁶Yb/¹⁷³Yb)true × (¹⁷³Yb/¹⁷⁷Hf)meas × (M₁₇₃(Yb)/M₁₇₇(Hf))b(Hf), b(Hf) = ln(¹⁷⁹Hf/¹⁷⁷Hf true / ¹⁷⁹Hf/¹⁷⁷Hfmeasured) / ln (M₁₇₉(Hf)/M₁₇₇(Hf)), M=mass of respective isotope. The ¹⁷⁶Lu/¹⁷⁷Hf were calculated in a similar way by using the ¹⁷⁵Lu/¹⁷⁷Hf and b(Yb).

(b) Mean Hf signal in volt.

(c) Initial ¹⁷⁶Hf/¹⁷⁷Hf and eHf calculated using the apparent age of each zircon and the CHUR parameters:

¹⁷⁶Lu/¹⁷⁷Hf = 0.0336, and ¹⁷⁶Hf/¹⁷⁷Hf = 0.282785 (Bouvier et al., 2008).

(d) Initial ¹⁷⁶Hf/¹⁷⁷Hf and eHf calculated using the emplacement age of each sample and the CHUR parameters:

¹⁷⁶Lu/¹⁷⁷Hf = 0.0336, and ¹⁷⁶Hf/¹⁷⁷Hf = 0.282785 (Bouvier et al., 2008).