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| LEADER |
00000ctm a2200000Ka 4500 |
| 001 |
in00001650708 |
| 005 |
20190325102919.0 |
| 008 |
011126s2000 xx ab b 000 0 eng d |
| 035 |
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|a (OCoLC)ocm48481509
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| 037 |
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|a 99-94316
|b UMI
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| 040 |
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|a TXA
|c TXA
|d UtOrBLW
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| 049 |
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|a TXAM
|a TXAR
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| 099 |
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|a 2000
|a Dissertation
|a P705
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| 100 |
1 |
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|a Price, Catherine Lisa.
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| 245 |
1 |
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|a Geologic characterization of the Grayburg Formation, Means field, Andrews County, Texas /
|c by Catherine Lisa Price.
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| 264 |
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1 |
|a [Place of publication not identified] :
|b [publisher not identified] ;
|c 2000.
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| 300 |
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|a x, 117 leaves :
|b illustrations, maps ;
|c 28 cm.
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| 336 |
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|a text
|b txt
|2 rdacontent
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| 337 |
|
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|a unmediated
|b n
|2 rdamedia
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| 338 |
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|a volume
|b nc
|2 rdacarrier
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| 502 |
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|b Ph. D.
|c Texas A&M University
|d 2000.
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| 504 |
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|a Includes bibliographical references (leaves 85-97).
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| 500 |
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|a Vita.
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| 500 |
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|a "Major Subject: Geology".
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| 530 |
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|a Issued also on microfiche from University Microfilm Inc.
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| 520 |
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|a The Permian (Guadalupian) Grayburg Formation of Means field, Andrews County, Texas, consists of siliciclastic, carbonate and evaporite strata that were deposited in three general platform environments: (1) subtidal open shelf, (2) subtidal to intertidal shallow-shelf, and (3) supratidal coastal flats and sabkhas. Vertical repetition of lithofacies can be used to identify small-scale shallowing-upward cycles in these strata. These shallowing-upward cycles are related to high-frequency low-amplitude sea-level fluctuations that affected platform sedimentation. The Grayburg composite sequence at Means field is composed of four high-frequency sequences. The lower two high-frequency sequences (HFS 1 and 2) record increased accommodation during long-term transgression, while the upper two (HFS 3 and 4) reflect decreased accommodation during later highstand conditions. Maximum flooding of the shelf occurred during deposition of HFS 2. The original textural and mineralogical composition of the Grayburg Formation was extensively altered by diagenesis. Early diagenesis resulting from hydrologic processes associated with continued sedimentation of younger strata resulted in replacive dolomitization and anhydrite emplacement. Late diagenesis reflects the influence of regional processes such as increased temperature and pressure, the introduction of meteoric water following Tertiary uplift of the western edge of the Permian Basin, and bacterial sulfate reduction and resulted in the precipitation of calcite, kaolinite, authigenic silica, and pyrite and the development of secondary porosity. Hydrocarbon production from the Grayburg Formation is generally concentrated in open shelf, shallow shelf, and shoal dolostones and dolomitic sandstones where both depositional (grain type, size and abundance) and diagenetic controls (dolomitization and dissolution) have led to the development of sufficient porosity and permeability for hydrocarbon flow.
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| 650 |
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4 |
|a Major geology.
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| 856 |
4 |
1 |
|u http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=727853241&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD
|t 0
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| 948 |
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|a cataloged
|b h
|c 2001/11/26
|d c
|e eneff
|f 2:19:38 pm
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| 994 |
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|a E0
|b TXA
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| 999 |
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|a MARS
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| 999 |
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|t 0
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| 952 |
f |
f |
|p noncirc
|a Texas A&M University
|b College Station
|c Cushing Memorial Library & Archives
|s cush tdrm
|d Cushing: Theses & Dissertations Microforms (Does not check out)
|t 0
|e 2000 Dissertation P705
|h Other scheme
|i unmediated -- volume
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| 952 |
f |
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|a Texas A&M University
|b College Station
|c Electronic Resources
|s www_evans
|d Available Online
|t 0
|e 2000 Dissertation P705
|h Other scheme
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| 998 |
f |
f |
|a 2000 Dissertation P705
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|l Cushing: Theses & Dissertations Microforms (Does not check out)
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f |
|a 2000 Dissertation P705
|t 0
|l Available Online
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