| DOI: | 10.1306/07091313020
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| Scopus记录号: | 2-s2.0-84888593138
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| 论文题名: | Calcisponge-microbialite reef facies, middle Permian (lower Guadalupian), northwest shelf margin of Permian Basin, New Mexico |
| 作者: | Wahlman G.P.; Orchard D.M.; Buijs G.J.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1629
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| EISSN: | 1558-9359
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| 出版年: | 2013
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| 发表日期: | 2013
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| 卷: | 97, 期:11 | | 起始页码: | 1895
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| 结束页码: | 1919
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| 语种: | 英语
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| Scopus关键词: | Binding agent
; Dolomitization
; Fibrous cement
; Framework cavities
; Permian basins
; Pressure solution
; Reef growths
; Vacuum field
; Cements
; Sandstone
; Stratigraphy
; Reefs
; anhydrite
; aragonite
; basin
; biota
; cohesion
; dolostone
; emplacement
; facies
; Guadalupian
; microbialite
; Permian
; porosity
; pressure solution
; reef
; sandstone
; spalling
; Delaware
; Lea County
; New Mexico
; United States
; Vacuum Field
; Amblysiphonella
; Archaeolithoporella
; Brachiopoda
; Bryozoa
; Discosiphonella
; Fusulinida
; Gastropoda
; Pelmatozoa
; Shamovella
|
| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | Exceptional mimetic preservation of reef fabrics in a dolostone subsurface core from Vacuum field, Lea County, New Mexico, along the northwest shelf margin of the Permian Basin reveals the significant microbialite role in a calcisponge-microbialite reef of the upper San Andres Formation (lower Guadalupian [middle Permian]). The shelfmargin reef facies, which comprises more than 85% of the 175-ft (53.34-m) cored section, is bordered shelfward by crestal shelf-margin shoal facies and seaward by basinal sandstones of the Delaware Mountain Group. The thick shelf-margin reef located within 500 ft (152.4 m) of basinal sandstone facies indicates a relatively steep reefal shelf margin. Microbialite encrustations are the most important binding agent in the reef, and their major contribution to the cohesion and volume of the reef has significant implications for the growth and character of other middle Permian shelf-margin reefs. The reef facies is composed of (1) a calcisponge-dominated reef framework (Guadalupia, Lemonea, Amblysiphonella, Discosiphonella [Cystaulete], and Cystothalamia); (2) a binding biota of ubiquitous micritic, laminated, and thrombolitic microbialite, moderately common Tubiphytes (= Shamovella), and sparse Archaeolithoporella and bryozoans; (3) sparse botryoids of syndepositional radial fibrous cements; (4) sparse reef dweller biota of gastropods, brachiopods, and crinoids; and (5) reef cavities lined by banded isopachous layers of marine phreatic radiaxial cements, partly filled by geopetal sediments, and finally filled by anhydrite. The paragenetic sequence is (1) reef growth, (2) framework cavities lined by marine phreatic radiaxial cements and partially filled by geopetal sediments, (3) partial aragonite dissolution and karsting, (4) rapid reflux dolomitization, (5) localized fracturing and spalling of cavity walls before and during emplacement of anhydrite, and (6) burial and pressure solution. Patchy intraskeletal skelmoldic porosity is mostly within calcisponges. Karstic fractures and cavities in the upper reef are filled with breccia clasts, fusulinid packstone-grainstones, dark argillaceous dolomudstones, and massive anhydrite. © 2013. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888593138&doi=10.1306%2f07091313020&partnerID=40&md5=47b8bca0494cdad566d35f45bc8e0145
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13199
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Wahlman G.P.,Orchard D.M.,Buijs G.J.. Calcisponge-microbialite reef facies, middle Permian (lower Guadalupian), northwest shelf margin of Permian Basin, New Mexico[J]. AAPG Bulletin,2013-01-01,97(11)
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