气候变化领域集成服务门户(CCPortal): Biochronology; paleoenvironments; and stratigraphic sequences of the late Albian–middle Eocene fore-arc Vizcaino basin; western Baja California; Mexico

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DOI	10.1306/10021817349
	Biochronology; paleoenvironments; and stratigraphic sequences of the late Albian–middle Eocene fore-arc Vizcaino basin; western Baja California; Mexico
	Helenes J.; Martin-Barajas A.; Flores-Trujillo J.G.; Paredes I.; Canache M.; Carreño A.-L.; Miranda A.
发表日期	2019
ISSN	0149-1423
起始页码	1045
结束页码	1069
卷号	103 期号:5
英文摘要	The Vizcaino fore-arc basin accumulated approximately 4 km (~13,000 ft) of upper Albian–middle Eocene siliciclastic marine sedimentary rocks derived from the Peninsular Ranges in Baja California. Data from eight exploratory wells document the micropaleontological content and lithological characteristics of these rocks. The strata studied represent mostly neritic–upper bathyal marine environments and overlie a basement composed of Cretaceous granitic rocks, or Aptian–Albian volcaniclastic sedimentary rocks correlative with the Alisitos Formation. We recognize four major depositional sequences within the basin that are related to the regional geology. The basal Albian–Turonian sequence 1 represents the initiation of fore-arc basin sedimentation, contains continental conglomerates that change to bathyal shales, and correlates with the lower part of the Valle Group of the Vizcaino Peninsula. Sequence 2 is Coniacian–Paleocene, includes basal conglomeratic sandstones grading into Maastrichtian bathyal shales, and usually overlies a Coniacian–Santonian unconformity. Sequence 2 is represented at the surface by the Rosario Group in northwestern Baja California and the upper part of the Valle Group in the Vizcaino Peninsula. Sequence 3 is Paleocene–middle Eocene, represents continuity of fore-arc sedimentation in neritic–upper bathyal conditions, is capped by a major unconformity, and correlates with the Sepultura and Bateque Formations to the north and south of the basin, respectively. The uppermost Miocene–Pliocene sequence 4 is composed of marine sandstone–siltstone unconformably overlying sequence 3 and is correlative with the Tortugas Formation that represents sedimentation after the end of subduction of the Farallon plate beneath the North America plate. Copyright ©2019. The American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Grading; Lithology; Sandstone; Sedimentology; Stratigraphy; Baja california; Depositional sequences; Exploratory wells; Marine environment; Paleoenvironments; Regional geology; Stratigraphic sequences; Volcaniclastics; Sedimentation; Albian; biochronology; Coniacian; Cretaceous; Eocene; Maastrichtian; marine environment; Miocene; North American plate; Paleocene-Eocene boundary; paleoenvironment; Pliocene; regional geology; Santonian; sedimentation; sequence stratigraphy; siliciclastic deposit; subduction; Argentina; Baja California [(STT) Mexico]; Coast Ranges; Mexico [North America]; Peninsular Ranges; Rosario; Santa Fe [Argentina]
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143765
作者单位	Departmento de Geología, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Ensenada, Baja California, Mexico; Departmento de Geología, CICESE, Ensenada, Baja California, Mexico; Dependencia Académica de Ingeniería y Tecnología, Universidad Autónoma del Carmen (UNACAR), Ciudad del Carmen, Campeche, Mexico; Stratigraphic Consultants, Estado Miranda, Venezuela; Departamento de Paleontología, Institute of Geology, UNAM, Ciudad de México, Mexico
推荐引用方式 GB/T 7714	Helenes J.,Martin-Barajas A.,Flores-Trujillo J.G.,等. Biochronology; paleoenvironments; and stratigraphic sequences of the late Albian–middle Eocene fore-arc Vizcaino basin; western Baja California; Mexico[J],2019,103(5).
APA	Helenes J..,Martin-Barajas A..,Flores-Trujillo J.G..,Paredes I..,Canache M..,...&Miranda A..(2019).Biochronology; paleoenvironments; and stratigraphic sequences of the late Albian–middle Eocene fore-arc Vizcaino basin; western Baja California; Mexico.AAPG Bulletin,103(5).
MLA	Helenes J.,et al."Biochronology; paleoenvironments; and stratigraphic sequences of the late Albian–middle Eocene fore-arc Vizcaino basin; western Baja California; Mexico".AAPG Bulletin 103.5(2019).