My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE139158
DRMS
>
Back File Migration
>
Permit File
>
300000
>
PERMFILE139158
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:39:56 PM
Creation date
11/26/2007 8:22:42 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981018
IBM Index Class Name
Permit File
Doc Date
5/13/2002
Doc Name
Geotechnical Investigation Deserado Coal Mine Surface Facilities
Section_Exhibit Name
Illustration 20
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
51
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
- 8 - <br />surface facilities are located along the lower slopes and valley floor <br />of Scullion Gulch. Bedrock at the site is the Upper Cretaceous age <br />Mesaverde Group. In this area, the Mesaverde Group has been sub- <br />divided into three formations: (1) the Upper Williams Fork Formation, <br />(2) the Lower Williams Fork Formation, and (3) the Iles Formation. <br />The Upper Williams Fork Formation forms prominent sandstone outcrops <br />and shallow mlluvial-covered ~ubcrops along the northeastern rim of <br />Scullion Gulch, shown by Map Sym~l 4c/Kwu on Fig. 3. The lower <br />portion of the northeastern valley side and the entire southwestern <br />valley side are underlain ~' outcrops and shallow mlluvial-covered <br />subcrops of the Lower Williams Fork Formation, shown by Map Symbol <br />Qc/Kcal. Bedding planes strike toward the north and northwest and dip <br />gently toward the east and northeast. Dip of bedding measured at the <br />site ranged from 5° to 17°. <br />The Upper Williams Fork Ebrmation is a thick, massive, fine to <br />medium-grained sandstone interbedded with gray siltstone, shale, and <br />occasional thin, discontinuous .layers of carbonaceous shale and mal. <br />The Lower Williams Fork Formation is made up of interbedded gray to <br />black siltstone, shale, carbonaceous shale and coal. The Lower <br />Williams Fork Formation also contains thin, often calcareous, lenses <br />of fine to very fine rained silty, well-cemented sandstones. In this <br />area, the Lower Williams Fork Formation is about 300 to 900 feet thick <br />and is underlain bi' the Iles Formation, which is an interbedded fine <br />to very fine-grained sandstone, siltstone, shale and occasionally <br />thin, discontinuous layers of opal. The Iles Formation does not crop <br />out at the surface facility site. The Iles Formation is shown on the <br />Geologic Cross-Sections, Fig. 5, by Map Symbol Ki. <br />
The URL can be used to link to this page
Your browser does not support the video tag.