Geology of the Van Buren and Lavaca Quadrangles, Arkansas ...
Geology of the Van Buren and Lavaca Quadrangles, Arkansas ...
Geology of the Van Buren and Lavaca Quadrangles, Arkansas ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
CONTENTS<br />
Pam<br />
A1<br />
1<br />
3<br />
3<br />
3<br />
3<br />
6<br />
6<br />
6<br />
6<br />
8<br />
8<br />
8<br />
8<br />
9<br />
9<br />
9<br />
9<br />
9<br />
9<br />
9<br />
ILLUSTRATIONS<br />
[Plates are in pocket1<br />
PLATE 1. Geologic map <strong>of</strong> <strong>Van</strong> <strong>Buren</strong> <strong>and</strong> <strong>Lavaca</strong> quadrangles, <strong>Arkansas</strong> <strong>and</strong> Oklahoma.<br />
2. Stratigraphic sections.<br />
3. Lithologic sections <strong>of</strong> post-Atoka rocks in <strong>Lavaca</strong> quadrangle.<br />
4. Electrical log correlation <strong>of</strong> <strong>the</strong> Atoka Formation.<br />
5. Structure-contour <strong>and</strong> coal-bed map.<br />
6. Structural sections.<br />
7. Graphs showing thickness, maximum porosity, <strong>and</strong> gas content <strong>of</strong> <strong>the</strong> s<strong>and</strong>stone part <strong>of</strong> selected zones in <strong>the</strong> Atoka<br />
Formation.<br />
Page<br />
FIQURE 1. Index map <strong>of</strong> reportarea-_____________-_-___________-____---------------~---------------------- A2<br />
2. Chart showing stratigraphic nomenclature <strong>of</strong> rocks--- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4<br />
3. Section showing correlation <strong>of</strong> rocks between <strong>the</strong> Everton <strong>and</strong> Boone Formations- - - - - - - - - - - - - - - - - - - - - - - -<br />
4-10. Map showing thickness <strong>of</strong>:<br />
7<br />
4. The Chattanooga Shale <strong>and</strong> <strong>the</strong> Boone Formation, Moorefield Formation, <strong>and</strong> Fayetteville Shale--- -<br />
5. The Pitkin Limestone, combined Fayetteville Shale, Moorefield Formation, <strong>and</strong> Boone Formation,<br />
10<br />
post-Chattanooga Mississippian rocks, <strong>and</strong> <strong>the</strong> Chattanooga Shale <strong>and</strong> Mississippian rocks- - - - - - 12<br />
6. Morrow rocks ________________________________________-------------------------<br />
---------- 14<br />
7. The Cane Hill <strong>and</strong> Prairie Grove Members <strong>of</strong> <strong>the</strong> Hale Formation <strong>and</strong> <strong>the</strong> Hale <strong>and</strong> Bloyd Formations- 16<br />
8. The lower, middle, <strong>and</strong> upper parts <strong>of</strong> <strong>the</strong> Atoka Formation, <strong>and</strong> its total thickness- - - - - - - - - - - - - - - -<br />
9. The s<strong>and</strong>y parts <strong>of</strong> zones 28, 58, 67, <strong>and</strong> 93 in <strong>the</strong> Atoka Formation- - - - - - - - - - - - - - - - - - - - - - - - - - - - -<br />
18<br />
20<br />
10. The s<strong>and</strong>y parts <strong>of</strong> zones 98, 99, 100, <strong>and</strong> 101 in <strong>the</strong> Atoka Formation.. - - - - - - - - - - - - - - - - - - - - - - - - - -<br />
11. Map showing location <strong>of</strong> wells drilled in <strong>the</strong> report area- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<br />
12. Maps showing possible maximum-porosity trends in <strong>the</strong> s<strong>and</strong>stone part <strong>of</strong> zone 98- - - - - - - - - - - - - - - - - - - - - - -<br />
m<br />
22<br />
29<br />
31<br />
Page<br />
9<br />
A14<br />
24<br />
24<br />
24<br />
24<br />
25<br />
25<br />
25<br />
25<br />
25<br />
26<br />
27<br />
27<br />
27<br />
27<br />
28<br />
28<br />
30<br />
30<br />
30<br />
32
Change language