Johnsson, Mark J.    <br/><br/>
Thermal maturity of sedimentary rocks in Alaska, digital resources  [computer file] 
Mark J. Johnsson, Kevin R. Evans, and Heather A. Marshall.  
 - Version 1.0.  
 - [Reston, VA]  Denver, CO  U.S. Dept. of the Interior, U.S. Geological Survey  USGS Information Services (Map and Book Sales)  1999. 
 - 1 computer optical disc  col.  4 3/4 in.  
 - Digital data series  DDS-54  .
<br/><br/> Shipping list no.: 99-0068-E. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> An updated re-release of 3 USGS publications: Vitrinite reflectance and conodont color alteration index data from Alaska: data to accompany the thermal maturity map of Alaska, USGS open-file report 92-409; Generalized thermal maturity map of Alaska, USGS miscellaneous geologic investigations map I-2494, scale 1:2,500,000; Thermal evolution of sedimentary basins in Alaska, USGS bulletin 2142.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sedimentary basins--Alaska.   <br/>Thermal analysis in earth sciences--Maps.--Alaska<br/>Terrestrial heat flow--Alaska.<br/>Conodonts--Alaska.
<br/><br/><label>GPO Item No.: </label>0621-K 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.121:54