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<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>C. I-Ming</dc:contributor>
  <dc:creator>P.B. Barton</dc:creator>
  <dc:date>1993</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;The polybaric liquidus surface for the H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O-rich corner of the NaCl-CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;-H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O ternary is calculated, relying heavily on&lt;/span&gt;&lt;/p&gt;&lt;ul class="list"&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;1.&lt;/span&gt;&lt;p&gt;(1) a Henry's law equation for CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in brines (modified from Drummond, 1981),&lt;/p&gt;&lt;/li&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;2.&lt;/span&gt;&lt;p&gt;(2) the assumption that the contributions of dissolved NaCl and CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in lowering the activity of H&lt;sub&gt;2&lt;/sub&gt;O are additive, and&lt;/p&gt;&lt;/li&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;3.&lt;/span&gt;&lt;p&gt;(3) data on the CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;clathrate solid solution (nominally CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;· 7.3H&lt;sub&gt;2&lt;/sub&gt;O, but ranging from 5.75 to 8 or 9 H&lt;sub&gt;2&lt;/sub&gt;O) from Bozzo et al. (1975).&lt;/p&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;&lt;span&gt;The variation with composition of the activity of CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;·7.3H&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;O, or any other composition within the clathrate field, is small, thereby simplifying the calculations appreciably. Ternary invariant points are&lt;/span&gt;&lt;/p&gt;&lt;ul class="list"&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;1.&lt;/span&gt;&lt;p&gt;(1) ternary eutectic at −21.5°C, with ice + clathrate + hydrohalite NaCl-·H&lt;sub&gt;2&lt;/sub&gt;O + brine&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;m&lt;/i&gt;&lt;sub&gt;&lt;i&gt;NaCl&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 5.15,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;m&lt;/i&gt;&lt;sub&gt;&lt;i&gt;co&lt;/i&gt;2&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 0.22 + vapor&lt;/sub&gt;&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;total&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;co&lt;/i&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 5.7 atm;&lt;/p&gt;&lt;/li&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;2.&lt;/span&gt;&lt;p&gt;(2) peritectic at −9.6°C, with clathrate + hydrohalite + liquid CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;+ brine&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;m&lt;/i&gt;&lt;sub&gt;&lt;i&gt;NaCl&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 5.18,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;m&lt;/i&gt;&lt;sub&gt;&lt;i&gt;co&lt;/i&gt;2&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 0.55&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;+ vapor (&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;total&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;co&lt;/i&gt;2&lt;span&gt;&amp;nbsp;&lt;/span&gt;= 26.47 atm&lt;/sub&gt;); and&lt;/p&gt;&lt;/li&gt;&lt;li class="react-xocs-list-item"&gt;&lt;span class="list-label"&gt;3.&lt;/span&gt;&lt;p&gt;(3) peritectic slightly below +0.1 °C, with halite + hydrohalite + liquid CO&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;+ brine (&lt;i&gt;m&lt;/i&gt;&lt;sub&gt;&lt;i&gt;NaCl&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈ 5.5, m&lt;sub&gt;co2&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈ 0.64&lt;/sub&gt;) + vapor (&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;total&lt;/i&gt;&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;P&lt;/i&gt;&lt;sub&gt;&lt;i&gt;co&lt;/i&gt;&lt;/sub&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;≈ 34 atm).&lt;/p&gt;&lt;/li&gt;&lt;/ul&gt;&lt;p&gt;&lt;span&gt;CO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;&amp;nbsp;isobars have been contoured on the ternary liquidus and also on the 25°C isotherm. An important caveat regarding the application of this information to the interpretation of the freezing-thawing behavior of fluid inclusions is that metastable behavior is a common characteristic of the clathrate.&lt;/span&gt;&lt;br&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1016/0016-7037(93)90385-A</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Elsevier</dc:publisher>
  <dc:title>Calculation of the vapor-saturated liquidus for the NaCl-CO2-H2O system</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>