scholarly journals Differential compaction over Late Miocene submarine channels in SE Brazil: Implications for trap formation

2017 ◽  
Vol 130 (1-2) ◽  
pp. 208-221 ◽  
Author(s):  
Nicholas I.P. Ward ◽  
Tiago M. Alves ◽  
Tom G. Blenkinsop
Keyword(s):  
Late Miocene ◽  
Submarine Channels ◽  
Trap Formation ◽  
Se Brazil

scholarly journals The Role of Mass Wasting In the Progressive Development Of Submarine Channels (Espírito Santo Basin, Se Brazil)

2017 ◽  
Vol 87 (5) ◽  
pp. 500-516 ◽  
Author(s):  
Yongpeng Qin ◽  
Tiago M. Alves ◽  
José Constantine ◽  
Davide Gamboa
Keyword(s):  
Mass Wasting ◽  
Submarine Channels ◽  
Espírito Santo ◽  
Progressive Development ◽  
Se Brazil ◽  
Espirito Santo

scholarly journals Overpressures in the central Otway Basin: the result of rapid Pliocene–Recent sedimentation?

2011 ◽  
Vol 51 (1) ◽  
pp. 439 ◽  
Author(s):  
David Tassone ◽  
Simon Holford ◽  
Mark Tingay ◽  
Adrian Tuitt ◽  
Martyn Stoker ◽  
...  
Keyword(s):  
Late Miocene ◽  
Upper Cretaceous ◽  
Source Rocks ◽  
Hydrocarbon Generation ◽  
Key Factors ◽  
Submarine Channels ◽  
Early Pliocene ◽  
Pore Pressures ◽  
Clastic Sediments ◽  
Drilling Data

This paper reports the first evidence for significant overpressures in the Otway Basin, southern Australia, where most previous studies have assumed near-hydrostatic pore pressures. Overpressures are observed in the Upper Cretaceous Shipwreck supersequence in several wells in the Voluta Trough, such as Bridgewater Bay–1, Normanby–1 and Callister–1. One of these wells penetrated successions of Pliocene-Recent marine clastic sediments nearly 700 m thick that were deposited rapidly in submarine channels and that were probably carved during the late-Miocene to early-Pliocene. Wireline and drilling data suggest that overpressures present in Upper Cretaceous shales and sandstones in the Belfast Mudstone and Flaxman and Waarre formations developed either due to disequilibrium compaction—where there is no evidence of hydrocarbon generation and thick Pliocene stratigraphy is present—or due to fluid expansion where there is evidence of hydrocarbon generation and the Pliocene stratigraphy is thin to absent. The two key factors that may indicate abnormal pore pressures in Upper Cretaceous sediments in the central Otway Basin are the thickness of Pliocene stratigraphy and whether or not hydrocarbons are actively generating from source rocks.

Modeling of ecological conditions in the Euxine Basin in the Sarmatian and Maeotian by methods of diatom analysis

2019 ◽  
pp. 257-261
Author(s):  
Eleonora P. Radionova
Keyword(s):  
Black Sea ◽  
Late Miocene ◽  
The Black Sea ◽  
Subtidal Zone ◽  
Diatom Analysis ◽  
Diatom Flora ◽  
North West ◽  
Ecological Conditions ◽  
The North

The associations and ecological conditions of the existence of modern diatoms of the North-West (Pridneprovsky), Prikerchensky and Eastern regions of the subtidal zone of the Black Sea are considered. Based on the unity of the composition of the Present and Sarmatian-Meotian diatom flora, an attempt has been made to model some of the ecological c situation of the Late Miocene Euxinian basin.

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