Study on the Mechanism of Organic Matter Enrichment in Early Cambrian Marine Shales in the Lower Yangtze Area, South China: An Example Using Well JXY1

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" colspan="5"><i>δ</i><sup>18</sup>O (SMOW)</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">Siliceous sources</td><td class="align_center">Magmatic rocks</td><td class="align_center">Metamorphic rocks</td><td class="align_center">Hydrothermal</td><td class="align_center">Arenaceous quartz</td></tr><tr><td class="align_left">Range</td><td class="align_center">8.3‰~11.2‰</td><td class="align_center">11.2‰~16.4‰</td><td class="align_center">12.2‰~23.6‰</td><td class="align_center">10.3‰~12.5‰</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Sources of siliceous minerals determined by <i>δ</i><sup>18</sup>O value.</div>

Geofluids

tab1

Table 1

Table 1: Study on the Mechanism of Organic Matter Enrichment in Early Cambrian Marine Shales in the Lower Yangtze Area, South China: An Example Using Well JXY1 

Table 1 | Study on the Mechanism of Organic Matter Enrichment in Early Cambrian Marine Shales in the Lower Yangtze Area, South China: An Example Using Well JXY1 