<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>J.-P. Boudou</dc:contributor>
  <dc:contributor>M. D. Lewan</dc:contributor>
  <dc:contributor>R. P. Wintsch</dc:contributor>
  <dc:creator>A. Schimmelmann</dc:creator>
  <dc:date>2001</dc:date>
  <dc:description>Large isotopic transfers between water-derived hydrogen and organic hydrogen occurred during hydrous pyrolysis experiments of immature source rocks, in spite of only small changes in organic 13C/12C. Experiments at 330 ??C over 72 h using chips or powder containing kerogen types I and III identify the rock/water ratio as a main factor affecting ????D for water and organic hydrogen. Our data suggest that larger rock permeability and smaller rock grain size increase the H-isotopic transfer between water-derived hydrogen and thermally maturing organic matter. Increasing hydrostatic pressure may have a similar effect, but the evidence remains inconclusive. ?? 2001 Elsevier Science Ltd. All rights reserved.</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/S0146-6380(01)00059-6</dc:identifier>
  <dc:language>en</dc:language>
  <dc:title>Experimental controls on D/H and 13C/12C ratios of kerogen, bitumen and oil during hydrous pyrolysis</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>