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029 1 a| AU@b| 000012411917;

035 a| (Sirsi) o07511050;

035 a| (OCoLC)7511050;

043 a| n-us-tx;

049 a| ERE#;

050 4 a| QD181.U7b| A335 1981;

082 04 a| 553.493b| Ad19g, 1981-2;

086 0 a| E 1.28:GJBX-4(81);

100 1 a| Adams, Samuel S.=| ^A1148252;

245 10 a| Geology and recognition criteria for sandstone uranium deposits in mixed fluvial-shallow marine sedimentary sequences, south Texas :b| final report /c| by Samuel S. Adams and R.B. Smith.;

260 a| Washington, DC :b| U.S. Government Printing Office,c| 1981.;

300 a| 146 pages :b| illustrations, maps ;c| 28 cm.;

336 a| text2| rdacontent;

337 a| unmediated2| rdamedia;

338 a| volume2| rdacarrier;

490 1 a| GJBX / Grand Junction Office, United States Dept. of Energy ;v| -4(81);

500 a| Plates 1-13 in pockets.;

500 a| "Prepared as a part of the National Uranium Resource Evaluation (NURE) program of the United States Dept. of Energy.";

504 a| Includes bibliographical references (p. 135-145).;

520 3 a| Uranium deposits in the South Texas Uranium Region are classical roll-type deposits that formed at the margin of tongues of altered sandstone by the encroachment of oxidizing, uraniferous solutions into reduced aquifers containing pyrite and, in a few cases, carbonaceous plant material. Many of the uranium deposits in South Texas are dissimilar from the roll fronts of the Wyoming basins. The host sands for many of the deposits contain essentially no carbonaceous plant material, only abundant disseminated pyrite. Many of the deposits do not occur at the margin of altered (ferric oxide-bearing) sandstone tongues but rather occur entirely within reduced, pyurite-bearing sandstone. The abundance of pyrite within the sands probably reflects the introduction of H₂S up along faults from hydrocarbon accumulations at depth. Such introductions before ore formation prepared the sands for roll-front development, whereas post-ore introductions produced re-reduction of portions of the altered tongue, leaving the deposit suspended in reduced sandstone. Evidence from three deposits suggests that ore formation was not accompanied by the introduction of significant amounts of H₂S.;

536 a| Sponsored by U.S. Dept. of Energyb| DE-AC13-76GJO1664;

650 0 a| Geologyz| Texas, South.=| ^A17219;

650 0 a| Uranium oresz| Texas, South.=| ^A21344;

700 1 a| Smith, R. B.q| (Richard Barrie),d| 1934-=| ^A1148900;

710 2 a| National Uranium Resource Evaluation Program.=| ^A462584;

710 2 a| Samuel S. Adams and Associates.=| ^A1148246;

710 2 a| R. B. Smith and Associates.?| UNAUTHORIZED;

710 1 a| United States.b| Department of Energy.b| Grand Junction Office.=| ^A1147722;

830 0 a| GJBX ;v| (81) 4.=| ^A1148996;

994 a| C0b| ERE;

596 a| 1;

998 a| 3331606;

999 a| E 1.28:GJBX-4(81)w| SUDOCc| 1i| 30372016223833l| JDOSm| JOYNERr| Ys| Yt| JDOSBKu| 7/9/2013x| BOOKz| JFEDDOCSo| .STAFF. jses;

Geology and recognition criteria for sandstone uranium deposits in mixed fluvial-shallow marine sedimentary sequences, south Texas : final report / by Samuel S. Adams and R.B. Smith.

Author/creator	Adams, Samuel S.
Format	Book
Publication Info	Washington, DC : U.S. Government Printing Office, 1981.
Description	146 pages : illustrations, maps ; 28 cm.
Subjects	Geology--Texas, South. Uranium ores--Texas, South.

Other author/creator	Smith, R. B. (Richard Barrie), 1934-
Other author/creator	National Uranium Resource Evaluation Program.
Other author/creator	Samuel S. Adams and Associates.
Other author/creator	R. B. Smith and Associates.
Other author/creator	United States. Department of Energy. Grand Junction Office.
Series	GJBX / Grand Junction Office, United States Dept. of Energy ; -4(81) GJBX ; (81) 4. ^A1148996
Summary	Uranium deposits in the South Texas Uranium Region are classical roll-type deposits that formed at the margin of tongues of altered sandstone by the encroachment of oxidizing, uraniferous solutions into reduced aquifers containing pyrite and, in a few cases, carbonaceous plant material. Many of the uranium deposits in South Texas are dissimilar from the roll fronts of the Wyoming basins. The host sands for many of the deposits contain essentially no carbonaceous plant material, only abundant disseminated pyrite. Many of the deposits do not occur at the margin of altered (ferric oxide-bearing) sandstone tongues but rather occur entirely within reduced, pyurite-bearing sandstone. The abundance of pyrite within the sands probably reflects the introduction of H₂S up along faults from hydrocarbon accumulations at depth. Such introductions before ore formation prepared the sands for roll-front development, whereas post-ore introductions produced re-reduction of portions of the altered tongue, leaving the deposit suspended in reduced sandstone. Evidence from three deposits suggests that ore formation was not accompanied by the introduction of significant amounts of H₂S.
General note	Plates 1-13 in pockets.
General note	"Prepared as a part of the National Uranium Resource Evaluation (NURE) program of the United States Dept. of Energy."
Bibliography note	Includes bibliographical references (p. 135-145).
Funding information	Sponsored by U.S. Dept. of Energy DE-AC13-76GJO1664
Govt. docs number	E 1.28:GJBX-4(81)

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Geology and recognition criteria for sandstone uranium deposits in mixed fluvial-shallow marine sedimentary sequences, south Texas : final report / by Samuel S. Adams and R.B. Smith.

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