Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina: SHRIMP U-Pb geochronology

Manuel Suárez; Marcelo Márquez; Rita De La Cruz; César Navarrete; Mark Fanning

doi:10.1016/j.jsames.2013.10.008

Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina: SHRIMP U-Pb geochronology

Manuel Suárez^*, Marcelo Márquez, Rita De La Cruz, César Navarrete, Mark Fanning

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Four new SHRIMP U-Pb zircon ages older than 93 Ma from samples of the two uppermost formations accumulated in two different depocenters (Golfo de San Jorge and Cañadón Asfalto basins) of the Chubut Group in central Argentinean Patagonia, establish a pre-late Cenomanian-? early Turonian age for the group. It also confirms a coeval and comparable evolution of the two depocenters, where distal pyroclastic material was deposited together with fluvial and lacustrine facies.

Original language	English
Pages (from-to)	67-74
Number of pages	8
Journal	Journal of South American Earth Sciences
Volume	50
DOIs	https://doi.org/10.1016/j.jsames.2013.10.008
Publication status	Published - Mar 2014

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10.1016/j.jsames.2013.10.008

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title = "Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina: SHRIMP U-Pb geochronology",

abstract = "Four new SHRIMP U-Pb zircon ages older than 93 Ma from samples of the two uppermost formations accumulated in two different depocenters (Golfo de San Jorge and Ca{\~n}ad{\'o}n Asfalto basins) of the Chubut Group in central Argentinean Patagonia, establish a pre-late Cenomanian-? early Turonian age for the group. It also confirms a coeval and comparable evolution of the two depocenters, where distal pyroclastic material was deposited together with fluvial and lacustrine facies.",

keywords = "Central Patagonia, Chubut group, Early late Cretaceous, Minimum age, SHRIMP",

author = "Manuel Su{\'a}rez and Marcelo M{\'a}rquez and {De La Cruz}, Rita and C{\'e}sar Navarrete and Mark Fanning",

year = "2014",

month = mar,

doi = "10.1016/j.jsames.2013.10.008",

language = "English",

volume = "50",

pages = "67--74",

journal = "Journal of South American Earth Sciences",

issn = "0895-9811",

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T1 - Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina

T2 - SHRIMP U-Pb geochronology

AU - Suárez, Manuel

AU - Márquez, Marcelo

AU - De La Cruz, Rita

AU - Navarrete, César

AU - Fanning, Mark

PY - 2014/3

Y1 - 2014/3

N2 - Four new SHRIMP U-Pb zircon ages older than 93 Ma from samples of the two uppermost formations accumulated in two different depocenters (Golfo de San Jorge and Cañadón Asfalto basins) of the Chubut Group in central Argentinean Patagonia, establish a pre-late Cenomanian-? early Turonian age for the group. It also confirms a coeval and comparable evolution of the two depocenters, where distal pyroclastic material was deposited together with fluvial and lacustrine facies.

AB - Four new SHRIMP U-Pb zircon ages older than 93 Ma from samples of the two uppermost formations accumulated in two different depocenters (Golfo de San Jorge and Cañadón Asfalto basins) of the Chubut Group in central Argentinean Patagonia, establish a pre-late Cenomanian-? early Turonian age for the group. It also confirms a coeval and comparable evolution of the two depocenters, where distal pyroclastic material was deposited together with fluvial and lacustrine facies.

KW - Central Patagonia

KW - Chubut group

KW - Early late Cretaceous

KW - Minimum age

KW - SHRIMP

UR - http://www.scopus.com/inward/record.url?scp=84892474673&partnerID=8YFLogxK

U2 - 10.1016/j.jsames.2013.10.008

DO - 10.1016/j.jsames.2013.10.008

M3 - Article

SN - 0895-9811

VL - 50

SP - 67

EP - 74

JO - Journal of South American Earth Sciences

JF - Journal of South American Earth Sciences

ER -

Cenomanian-? Early Turonian minimum age of the Chubut Group, Argentina: SHRIMP U-Pb geochronology

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