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Stratigraphic framework and coal correlation of the Upper Cretaceous Fruitland Formation, Bisti-Ah-Shi-Sle-Pah area, San Juan Basin, New Mexico

Miscellaneous Field Studies Map 1390

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Abstract

This report illustrates and describes the detailed stratigraphic framework and coal correlation of the Upper Cretaceous Fruitland Formation exposed in isolated badlands and along washes within a 20-mile outcrop belt in the Bisti-Ah-Shi-Sle-Pah area, southwestern San Juan Basin, Nex Mexico (see index). The stratigraphic framework showing the vertical and lateral distributions of rock types and the lateral continuity of coal beds is illustrated in cross sections. The cross sections were constructed from 112 stratigraphic sections measured at an average distance of 0.4 mi apart. Each section contained key marker beds (sandstone, coal, and tonstein) that were physically traced to adjacent sections. Each measured section was "hung" on multiple marker beds arranged in a geometric best-fit method that accounts for the differential compaction and facies associations of the deposits. 

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Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Stratigraphic framework and coal correlation of the Upper Cretaceous Fruitland Formation, Bisti-Ah-Shi-Sle-Pah area, San Juan Basin, New Mexico
Series title:
Miscellaneous Field Studies Map
Series number:
1390
ISBN:
0607810238
Year Published:
1982
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Description:
35.73 x 28.47 inches
Country:
United States
State:
New Mexico
Scale:
50000
Online Only (Y/N):
N
Additional Online Files (Y/N):
N