Depositional history of sedimentary linear alkylbenzenes (LABs) in a large South American industrial coastal area (Santos Estuary, Southeastern Brazil)

2010 ◽  
Vol 158 (11) ◽  
pp. 3355-3364 ◽  
Author(s):  
César C. Martins ◽  
Márcia C. Bícego ◽  
Michel M. Mahiques ◽  
Rubens C.L. Figueira ◽  
Moyses G. Tessler ◽  
...  
Keyword(s):  
Coastal Area ◽  
Southeastern Brazil ◽  
South American ◽  
Depositional History ◽  
Linear Alkylbenzenes ◽  
History Of

New conodont records of the Los Sombreros Formation (Cambrian–Ordovician) from the Western Precordillera, Argentina: biostratigraphic and palaeoenvironmental implications

2019 ◽  
Vol 157 (4) ◽  
pp. 539-550
Author(s):  
Gabriela Torre ◽  
Guillermo L. Albanesi
Keyword(s):  
Continental Margin ◽  
Carbonate Platform ◽  
South American ◽  
The South ◽  
Depositional History ◽  
The Matrix ◽  
Minimum Age ◽  
History Of ◽  
Lower Palaeozoic ◽  
Early Palaeozoic

AbstractThe presence of a carbonate platform that interfingers towards the west with slope facies allows for the identification of an ancient lower Palaeozoic continental margin in the Western Precordillera of Argentina. The Los Sombreros Formation is essential for the interpretation of the continental slope of the Precordillera, which accreted to Gondwana as part of the Cuyania Terrane in the early Palaeozoic. The age of these slope deposits is controversial; therefore, a precise biostratigraphic scheme is critical to reveal the evolution of the South American continental margin of Gondwana. The study of lithic deposits of two sections of the Los Sombreros Formation, the El Salto and Los Túneles sections, provides important information for further understanding the depositional history of the slope. At El Salto section, the conodonts recovered from an allochthonous block refer to the Cordylodus proavus Zone (upper Furongian). The conodonts recovered from the matrix of a calclithite bed of the Los Sombreros Formation in the Los Túneles section are assigned to the Lenodus variabilis Zone (early Darriwilian), providing a minimum age for this stratigraphic unit. In addition, clasts from this sample yielded conodonts from the Paltodus deltifer − Macerodus dianae zones (upper Tremadocian). The contrasting conodont colour alterations and preservation states from the elements of two latter records, coming from the same sample, argue the reworked clasts originated in the carbonate platform and later transported to the slope during the accretion process of the Precordilleran Terrane to the South American Gondwanan margin during the Middle–Late Ordovician.

A new species ofCinclodesfrom the Espinhaço Range, southeastern Brazil: insights into the biogeographical history of the South American highlands

Ibis ◽  
2012 ◽  
Vol 154 (4) ◽  
pp. 738-755 ◽  
Author(s):  
Guilherme H. S. Freitas ◽  
Anderson V. Chaves ◽  
Lílian M. Costa ◽  
Fabrício R. Santos ◽  
Marcos Rodrigues
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
South American ◽  
The South ◽  
Espinhaço Range ◽  
History Of ◽  
History Of The South ◽  
A New Species

CLIMATIC AND DEPOSITIONAL HISTORY OF THE LOWER PALEOCENE UPPER NACIMIENTO FORMATION, SAN JUAN BASIN, NEW MEXICO

2016 ◽  
Author(s):  
Caitlin E. Leslie ◽  
◽  
Ross Secord ◽  
Daniel J. Peppe ◽  
Stacy Atchley ◽  
...  
Keyword(s):  
New Mexico ◽  
San Juan ◽  
Depositional History ◽  
San Juan Basin ◽  
History Of

PROVENANCE AND SYNTECTONIC DEPOSITIONAL HISTORY OF THE MIOCENE CAMERINO DEEPWATER BASIN, CENTRAL ITALY

2020 ◽  
Author(s):  
Alan Pitts ◽  
◽  
Achim D. Herrmann ◽  
John T. Haynes ◽  
Gabriele Giuli ◽  
...  
Keyword(s):  
Central Italy ◽  
Depositional History ◽  
History Of ◽  
Deepwater Basin
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