ÿþ<HTML> <HEAD> <STYLE> BODY {background-color:#FBFFFF; margin:0.25in; font-size:10pt; font-family:Arial,sans-serif} H1 {margin-left:0.05in; position:relative; top:-6; text-align:center; font-weight:bold; font-size:18; font-family:Verdana,sans-serif; color:#006400} H2 {margin-left:0.25in; position:relative; top:-16; text-align:center; font-size:13; font-family:Verdana,sans-serif; color:#006400} TABLE {position:relative; top:-10; valign:top; table-layout:fixed; border-collapse:collapse} TD {text-align:center} TD {font-weight:bold; font-size:11pt; border-color:#6495ED} .tsel {color:#FFFFFF; background-color:#6495ED} .tun {color:#00008B; background-color:#B8DEFA} .tover {color:#0000CD; background-color:#B8E6FF; cursor:hand} .f {background-color:#FFFFFF; border:'1.5pt solid #6495ED'; position:relative; top:-10} .ph1 {color:#2E8B57; font-weight:bold; cursor:} .ph2 {margin-left:0.2in; color:#2E8B57; font-weight:bold; cursor:} .pover1 {color:#006000; font-weight:bold; cursor:hand} .pover2 {margin-left:0.2in; 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if (pos > 0) { while (pos > 0) { var t = e.childNodes(0); var n = document.createElement("PRE"); var s = t.splitText(pos); e.insertAdjacentElement("afterEnd", n); n.appendChild(s); e = n; pos = e.innerText.indexOf("\n"); } var count = (par.children.length); for (var i = 0; i < count; i++) { e = par.children(i); if (e.tagName == "PRE") { pos = e.innerText.indexOf(">"); if (pos != 0) { n = document.createElement("DIV"); e.insertAdjacentElement("afterEnd", n); n.innerText = e.innerText; e.removeNode(true); } } } if (par.children.tags("PRE").length > 0) { count = (par.childNodes.length); for (i = 0; i < count; i++) { e = par.children(i); if (e.tagName == "PRE") { e.id = ""; if (i < (count-1)) { var e2 = par.children(i + 1); if (e2.tagName == "PRE") { e.insertAdjacentText("beforeEnd", e2.innerText+"\n"); e2.removeNode(true); count = count-1; i = i-1; } } } } } } else { n = document.createElement("DIV"); par.appendChild(n); n.innerText = e.innerText; e.removeNode(true); } } --></SCRIPT> </HEAD> <BODY onload="position();" onresize="position();" oncontextmenu="return true"> <H1>Grid Files for the 3-D Geologic/Petroleum System Model of the Western Canada Sedimentary Basin (WCSB)</H1> <H2>Text File </H2> <TABLE cols="3" frame="void" rules="cols" width="315" height="28"> <COL WIDTH="105" /><COL WIDTH="105" /><COL WIDTH="105" /> <TR height="28" onmouseover="doHilite()" onmouseout="doHilite()" onclick="changeTab(this)"> <TD ID="DescTab" CLASS="tsel" TITLE="Click to see a description of the data">Description</TD> <TD ID="SpatialTab" CLASS="tun" TITLE="Click for details about the spatial data">Spatial</TD> <TD ID="AttribTab" CLASS="tun" TITLE="Click for details about the attribute data">Attributes</TD> </TR> </TABLE> <DIV ID="Group" CLASS="f"> <DIV ID="Description" CLASS="pv" STYLE="display:block"><BR /> <DIV CLASS="pn">Keywords</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Theme: </SPAN> petroleum system modeling</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Theme: </SPAN> Natural gas resources</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Theme: </SPAN> geoscientificInformation</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Theme: </SPAN> Earth Science, USGS, Resource Assessment, Geology, Petroleum</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Theme: </SPAN> Petroleum system model, Canada, Mannville, zmap grid, Alberta, Saskatchewan, 3-D model</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Place: </SPAN> Alberta, Canada</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Place: </SPAN> Canada, Alberta Basin, Rocky Mountain Deformed Belt, Saskatchewan, Total Petroleum System</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Place: </SPAN> Western Canada Sedimentary Basin Access_Constraints (1.7): None</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Stratum: </SPAN> isopach and structure grids</DIV> <DIV STYLE="margin-left:0.2in" CLASS="lt2"><SPAN CLASS="pn">Temporal: </SPAN> Devonian to Present</DIV> <BR /> <DIV CLASS="pn">Description</DIV> <DIV CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Abstract <DIV CLASS="pe2" STYLE="display:"> <SPAN CLASS="lt"><PRE ID="original">A 3-D geologic/petroleum system model of the Western Canada Sedimentary Basin (WCSB) was created by using elevations on the top of the Lower Cretaceous Mannville Group as a reference horizon for stacking 18 isopach intervals from the base of the Devonian Woodbend Group and age equivalent formations, stratigraphically upward to the ground surface; this includes an estimated thickness of eroded sediments based on 1-D burial history reconstructions for 33 wells across the study area. Each interval for the construction of the 3-D model was chosen on the petroleum system basis of whether it is primarily composed of reservoir, hydrocarbon source, seal, overburden, or underburden strata, as well as the quality and areal distribution of well and other data. Data from numerous databases and data sets were accessed to create the isopach intervals. Interval boundaries are primarily formation tops that were derived from data retrieved from the databases. Because formation names commonly change across province and national boundaries, formations that comprise the intervals were chosen based on age-equivalent strata. These isopach files were gridded at approximately 1-kilometer spacing and saved for publication as zmap-format grid files.</PRE></SPAN><BR /> <SCRIPT>fix(original)</SCRIPT> </DIV> </DIV> <DIV CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Purpose <DIV ID="Purpose" CLASS="pe2" STYLE="display:"> <SPAN CLASS="lt"><PRE ID="original">The purposes of the zmap-format grid files are to create the 3-D geologic and petroleum system models of the WCSB, and to publish these files such that others can use them in applications such as reservoir and basin modeling. The digital files listed in table 1 were compiled as part of the Petroleum Processes Research Project being conducted by the Central Energy Resources Team of the U.S. Geological Survey, which focuses on modeling petroleum generation, migration, and accumulation through time for petroleum systems of the WCSB. Primary purposes of the WCSB study are to: 1. Construct the 1-D/2-D/3-D petroleum system models of the WCSB. Actual boundaries of the study area are documented within the metadata; excluded are northern Alberta and eastern Saskatchewan, but fringing areas of the United States are included. 2. Publish results of the research and the grid files generated for use in the 3-D model of the WCSB. 3. Evaluate the use of petroleum system modeling in assessing undiscovered oil and gas resources for geologic provinces across the World.</PRE></SPAN><BR /> <SCRIPT>fix(original)</SCRIPT> </DIV> </DIV> <DIV CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Supplementary Information <DIV CLASS="pe2" STYLE="display:"> <SPAN CLASS="lt"><PRE ID="original">The names of zmap-format grid files listed below are also included in table 1. Each file name is followed by an explanation of the stratigraphic interval that is represented. Shown in parentheses is the number of well records that were used to generate the grid files. Other sources of data include digitized contours, as well as supplementary data that are added to control over-extrapolation and under-interpolation of contours in areas of poor data distribution. An example of the latter is zero thickness in areas where formations are absent. Erosion.DAT Estimated thickness of eroded Holocene- to present-day interval as interpreted from burial history reconstructions of 33 wells. GrColoiso.DAT Ground surface to the top of the Colorado Group (11,900) ColoCard.DAT Top of the Colorado Group to the top of the Cardium Formation (2,744) Card2Whsp.DAT Top of the Cardium Formation to top of the 2nd White Speckled Shale (625) 2WhsBFscale.DAT Top of the 2nd White Speckled Shale to base of the Fish Scale Marker horizon (223,856) Westgate.DAT Base of the Fish Scale Marker horizon to the top of the Viking Sandstone, and includes the Westgate Member of the Ashville Formation (57,835) Viking.DAT Isopach of the Viking Sandstone (5,770) JoliFou.DAT Top of the Joli Fou Shale (base of the Viking Sandstone) to the top of the Mannville Group (26,036) MannEle.DAT Elevation relative to seal level on the top of the Mannville Group (102,138) UMann.DAT Isopach of the upper Mannville Group (5,889) LMann.DAT Isopach of the lower Mannville Group, and including the Cut Bank Sandstone and Cadomin Formations (6,639) Jurassic.DAT Isopach of Jurassic formations across the WCSB (2,807) TriasPermC.DAT Isopach of Triassic, Permian, and uppermost Carboniferous to Kibbey Formation and age equivalents (1,986) RundleChar.DAT Isopach of the Rundle and Charles Groups (2,297) Banff.DAT Top of the Banff Shale to the top of the Exshaw and Bakken Formations (3,378) ExshBak.DAT Isopach of the Exshaw and Bakken Formations (10,968) WabWinter.DAT Top of the Wabamun Group and Palliser Formations to the base of the Winterburn Group (2,999) Woodbend.DAT Isopach of the Woodbend Group (1,855)</PRE></SPAN><BR /> <SCRIPT>fix(original)</SCRIPT> </DIV> </DIV> <DIV CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Links to graphics describing the data <DIV CLASS="pe2" STYLE="display:; position:relative; top:-15; margin-left:-0.05in"> <UL><LI> (JPEG): <A TARGET="viewer" HREF="http:\\certmapper.cr.usgs.gov\data\we\graphic\OF1421.jpg">http:\\certmapper.cr.usgs.gov\data\we\graphic\OF1421.jpg</A> </LI> </UL> </DIV> </DIV> <DIV STYLE="text-align:center; color:#6495ED">_________________</DIV><BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Status of the data <DIV CLASS="pe2" STYLE="display:none"> Complete<BR /><I>Data update frequency: </I> None Planned<BR /></DIV> </DIV> <BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Time period for which the data is relevant <DIV CLASS="pe2" STYLE="display:none"> <DIV><I>Date and time: </I> 20051105</DIV> <DIV> <I>Description: </I> <SPAN CLASS="lt"><PRE ID="original">Date of publication</PRE></SPAN><BR /> <SCRIPT>fix(original)</SCRIPT> </DIV> </DIV> </DIV> <BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Publication Information <DIV CLASS="pe2" STYLE="display:none"><SPAN CLASS="lt2"> <I>Who created the data: </I>United States Geological Survey (USGS)<BR /></SPAN> <DIV><I>Date and time: </I> 2005</DIV> <DIV><I>Publisher and place: </I> U.S. Geological Survey, Central Energy Resources Team </DIV> </DIV> </DIV> <DIV STYLE="text-align:center; color:#6495ED">_________________</DIV><BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Data storage and access information <DIV CLASS="pe2" STYLE="display:none"> <I>File name: </I>metadataWCSB.txt<BR /> <I>Type of data: </I>Downloadable GIS Data<BR /> <I>Data processing environment: </I><SPAN CLASS="lt">Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800</SPAN><BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Accessing the data <DIV CLASS="pe2" STYLE="display:none"> <I>Data format: </I>ZMAP<BR /> <DIV CLASS="pn">Network location:</DIV><DIV CLASS="pe2"> <LI>http://pubs.usgs.gov/of/2005/1421/downloads/</LI> </DIV> <BR /> </DIV> </DIV> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Constraints on accessing and using the data <DIV CLASS="pe2" STYLE="display:none"> <I>Access constraints: </I> <SPAN CLASS="lt">None<BR /></SPAN><DIV> <I>Use constraints: </I> <SPAN CLASS="lt"><PRE ID="original">None</PRE></SPAN><BR /> <SCRIPT>fix(original)</SCRIPT> </DIV> </DIV> </DIV> </DIV> </DIV> <BR /> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Details about this document <DIV CLASS="pe2" STYLE="display:none"> <DIV>Contents last updated: 20051129</DIV> <DIV>Contents last reviewed: 20051015</DIV> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Who completed this document <DIV CLASS="pe2" STYLE="display:none"> Debra K. Higley<BR />U.S. Geological Survey, Central Energy Resources Team<BR /><I>mailing and physical address:</I><BR /><DIV STYLE="margin-left:0.3in"> <DIV CLASS="lt"> <PRE ID="original">U.S. Geological Survey, Box 25046, MS 939, Denver Federal Center</PRE> <SCRIPT>fix(original)</SCRIPT> </DIV> <DIV> Denver, Colorado 80225</DIV> <DIV>USA</DIV></DIV> <BR /> datamgt@usgs.gov<BR /><BR /> <DIV><I>Contact Instructions:</I></DIV> <DIV STYLE="margin-left:0.3in"> <PRE ID="original">For inquiries regarding this document, please include the metadata contact person's name, dataset name, and publication series and number.</PRE> <SCRIPT>fix(original)</SCRIPT> </DIV> <BR /> </DIV> </DIV> <DIV CLASS="ph1" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Standards used to create this document <DIV CLASS="pe2" STYLE="display:none"> <I>Standard name: </I>FGDC Content Standards for Digital Geospatial Metadata<BR /> <I>Standard version: </I>FGDC-STD-001-1998<BR /> <I>Time convention used in this document: </I>local time<BR /> Metadata profiles defining additonal information<LI STYLE="margin-left:0.2in"> ESRI Metadata Profile: <A TARGET="viewer" HREF="http://www.esri.com/metadata/esriprof80.html">http://www.esri.com/metadata/esriprof80.html </A> </LI> </DIV> </DIV> </DIV> </DIV> <BR /> </DIV> <DIV ID="Spatial" class="pv" STYLE="display:none"><BR /> <DIV CLASS="pn">Horizontal coordinate system</DIV> <DIV STYLE="margin-left:0.2in"><I>Projected coordinate system name: </I>Albers Equal Area Conic</DIV> <DIV CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Details <DIV CLASS="pe2" STYLE="display:none"> <DIV CLASS="sr1"><SPAN CLASS="pn">Map Projection Name: </SPAN>Albers Conical Equal Area</DIV> <DIV CLASS="sr2"><I>Standard Parallel: </I>48.000000<BR /> <I>Standard Parallel: </I>58.000000<BR /> <I>Longitude of Central Meridian: </I>-110.000000<BR /> <I>Latitude of Projection Origin: </I>54.000000<BR /> </DIV> <BR /> <DIV CLASS="srh1">Geodetic Model</DIV> <DIV CLASS="sr2"><I>Horizontal Datum Name: </I>WGS 1984</DIV> <DIV CLASS="sr2"><I>Ellipsoid Name: </I>WGS 1984</DIV> <DIV CLASS="sr2"><I>Semi-major Axis: </I>6378137 Semi-minor Axis: 6356752.31424518</DIV> <DIV CLASS="sr2"><I>Denominator of Flattening Ratio: </I>294.98</DIV> </DIV> </DIV> <DIV STYLE="text-align:center; color:#6495ED">_________________</DIV><BR /> <DIV CLASS="pn">Bounding coordinates</DIV> <DIV STYLE="margin-left:0.2in" CLASS="pn">Horizontal</DIV> <DIV STYLE="margin-left:0.4in" CLASS="pn">In decimal degrees</DIV> <DIV STYLE="margin-left:0.6in"><I>West: </I> -119.774700</DIV> <DIV STYLE="margin-left:0.6in"><I>East: </I> -99.062710</DIV> <DIV STYLE="margin-left:0.6in"><I>North: </I> 57.750059</DIV> <DIV STYLE="margin-left:0.6in"><I>South: </I> 48.176807</DIV> <DIV STYLE="text-align:center; color:#6495ED">_________________</DIV><BR /> <DIV CLASS="pn">Lineage</DIV> <DIV CLASS="pn" STYLE="margin-left:0.2in">FGDC lineage</DIV> <DIV CLASS="ph2" STYLE="margin-left:0.4in" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Process step 1 <DIV CLASS="pe2" STYLE="margin-left:0.2in; display:none"> <I>Process description: </I>Data from the databases listed below were used to generate the grid files. Formations and time intervals chosen for the isopach and structure surfaces were based mainly on the data distribution across the basin, perceived accuracy of the data, and on the importance of intervals within the petroleum system framework of the basin. Published maps and cross sections, including those from Mossop and Shetsen (1994), were used to calibrate the formation tops information. 1. IHS Energy Accumap database, 2004, available from IHS Energy, 4100 Dry Creek Road, Littleton, CO 80122. 2. IHS Energy Well History Control System database, 2004, available from IHS Energy, 4100 Dry Creek Road, Littleton, CO 80122. 3. Mossop, Grant D. and Irina Shetsen, 1994, Geological atlas of the Western Canada Sedimentary Basin: Canadian Society of Petroleum Geologists and Alberta Research Council, Calgary, Alberta, &lt;http://www.ags.gov.ab.ca/publications/ATLAS_WWW/ATLAS.shtml&gt;, [last accessed 01/18/05].<BR /> </DIV> </DIV> <DIV CLASS="pn" STYLE="margin-left:0.4in">Sources</DIV> <DIV CLASS="ph2" STYLE="margin-left:0.6in" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Source 1<DIV CLASS="pe2" STYLE="margin-left:0.2in; display:none"> <I>Media: </I>digital databases<BR /> <I>Scale denominator: </I>Not applicable. Sources are point data.<BR /> </DIV> </DIV> <DIV STYLE="text-align:center; color:#6495ED">_________________</DIV><BR /> <DIV CLASS="pn">Spatial data description</DIV> <DIV CLASS="pn" STYLE="margin-left:0.2in">Vector data information</DIV> <DIV CLASS="ph2" STYLE="margin-left:0.4in" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">SDTS description <DIV CLASS="pe2" STYLE="display:none"> <DIV>Feature class: SDTS feature type, feature count</DIV> <DIV STYLE="margin-left:0.2in"> <LI> Feature class: Point, 1,303,629 grid cell values </LI> </DIV> </DIV> </DIV> <BR /> </DIV> <DIV ID="Attributes" class="pv" STYLE="display:none"><BR /> <DIV CLASS="pn">Details for Erosion.DAT, GrColoiso.DAT, ColoCard.DAT, Card2Whsp.DAT, 2WhsBFscale.DAT, Westgate.DAT, Viking.DAT, JoliFou.DAT, MannElev.DAT, UMann.DAT, LMann.DAT, Jurassic.DAT, TriasPermC.DAT, RundleChar.DAT, Banff.DAT, ExshBak.DAT, WabWinter.DAT, Woodbend.DAT</DIV> <DIV STYLE="margin-left:0.2in" CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)">Description <DIV CLASS="pe2" STYLE="display:none"> <SPAN CLASS="lt">zmap-format grid files</SPAN><BR /> <SPAN CLASS="lt"><I>Source: </I>U.S. Geological Survey, Central Energy Resources</SPAN><BR /> <BR /> </DIV> </DIV> <DIV STYLE="margin-left:0.2in" CLASS="pn"> Attributes<DIV STYLE="margin-left:0.25in" CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)"> Header information <DIV CLASS="pe2" STYLE="display:none"> <SPAN CLASS="lt"><I>Definition: </I><PRE ID="original">zmap-format grid files</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <SPAN CLASS="lt"><I>Definition Source: </I><PRE ID="original">Header on each grid file.</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <BR /> </DIV> </DIV> </DIV> <DIV STYLE="margin-left:0.2in" CLASS="pn"> <DIV STYLE="margin-left:0.25in" CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)"> x range of grid files <DIV CLASS="pe2" STYLE="display:none"> <SPAN CLASS="lt"><I>Definition: </I><PRE ID="original">values in meters</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <SPAN CLASS="lt"><I>Definition: </I><PRE ID="original">values in meters</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <SPAN CLASS="lt"><I>Definition Source: </I><PRE ID="original">This is derived from grid-file creation by U.S. Geological Survey personnel and consultants</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <SPAN CLASS="lt"><I>Definition Source: </I><PRE ID="original">This is derived from grid-file creation by U.S. Geological Survey personnel and consultants</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <BR /> </DIV> </DIV> </DIV> <DIV STYLE="margin-left:0.2in" CLASS="pn"> <DIV STYLE="margin-left:0.25in" CLASS="ph2" onmouseover="doHilite()" onmouseout="doHilite()" onclick="hideShowGroup(this)"> Thickness, elevation <DIV CLASS="pe2" STYLE="display:none"> <SPAN CLASS="lt"><I>Definition: </I><PRE ID="original">Elevation of top relative to sea level or isopach thickness of gridded formation intervals</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <SPAN CLASS="lt"><I>Definition Source: </I><PRE ID="original">Derived from gridded data files generated by U.S. Geological Survey personnel</PRE></SPAN> <SCRIPT>fix(original)</SCRIPT> <BR /> </DIV> </DIV> </DIV> <BR /> </DIV> </DIV> </BODY> </HTML>