The .PDF file listed above contains non-confidential
coal log descriptions from the Coal Section's stratigraphic database
in the County listed.
Click here to download the
raw .dbf files from which the entire stratigraphic database derives
(if such files are what you really want; most users will only want
and need the .PDF files).
Each coal log has a "header" element that contains location
information, log type, log source and other information (see sample
below).
Sample location: COUNTY: SALINE 7S - R 6E SECTION: 35 NWSE 330S
330W
This log is from a borehole located in Saline County, Township
7 South, Range 6 East, northwest quarter of the southeast quarter
of section 35, 330 feet from the South section line, and 330 feet
from the West section line.
Beneath the header is information on the geology for that data
point. The Coal Section stratigraphic database from which this .PDF
file derives is a multi-project database which contains drill hole
and outcrop descriptions of Pennsylvanian stratigraphy in Illinois.
Consequently, the level of detail and accuracy in the data and their
interpretation vary (sometimes widely, ) with the geologist, project
type, or original data source. Multiple descriptions of a particular
location may be present. Note that both the coal stratigraphic database
and this .PDF listing are only a subset of the total amount of data
available from the ISGS Geologic Records Library archives, and reflect
only coal-specific data and interpretations of past and present
Coal Section geologists. They are not a comprehensive listing of
all data that may be available from the ISGS.
|