Triassic Taylorsville Basin, Virginia, USA: Comparative Thermal History and Organic Facies Within the Early Mesozoic Eastern North American Lacustrine Rift Basin System

2015 ◽  
pp. 215-251
Author(s):  
MaryAnn Love Malinconico
Keyword(s):  
North American ◽  
Thermal History ◽  
Rift Basin ◽  
Organic Facies ◽  
Early Mesozoic ◽  
Basin System

The March 29, 2019 Earthquake in the Western Part of the Tunka Rift Basin System: Source Parameters and Macroseismic Effects

2020 ◽  
Vol 56 (6) ◽  
pp. 648-661
Author(s):  
Ya. B. Radziminovich ◽  
A. I. Seredkina ◽  
V. I. Melnikova ◽  
N. A. Gileva
Keyword(s):  
Source Parameters ◽  
Rift Basin ◽  
Macroseismic Effects ◽  
Basin System

Timing of events in an Early Cretaceous island arc–marginal basin system on South Georgia

1979 ◽  
Vol 116 (3) ◽  
pp. 167-179 ◽  
Author(s):  
P. W. G. Tanner ◽  
D. C. Rex
Keyword(s):  
Continental Crust ◽  
Island Arc ◽  
Magmatic Arc ◽  
South Georgia ◽  
Marginal Basin ◽  
Early Mesozoic ◽  
Mafic Complex ◽  
Minimum Age ◽  
Radiometric Ages ◽  
Basin System

Summary19 new K–Ar mineral ages of 78-201 Ma and 3 Rb–Sr whole rock isochron ages of 81 ± 10, 127±4 and 181±30 Ma are presented from units of continental crust, mafic complex and island arc assemblage on South Georgia. The Drygalski Fjord Complex, part of the possible floor of the marginal basin in the southern part of the island, includes granodiorite and gabbro plutons of minimum age 180–200 Ma. Together with older metasediments they have been affected by a major thermal event at about 140 Ma, thought to have resulted from the emplacement of a mafic complex (Larsen Harbour Formation) during the initial opening of the marginal basin. Rocks of the Larsen Harbour Formation are cut by the Smaaland Cove intrusion dated by Rb–Sr whole rock isochron at 127±4 Ma. An island arc assemblage exposed to the SW of South Georgia consists of pyroclastic rocks cut by monzodiorite and andesite intrusions, which give radiometric ages of 81–103 Ma. These data suggest that the marginal basin opened during the late Jurassic (pre-140 Ma); that part of an earlier (early Mesozoic) magmatic arc is preserved in continental crust making up part of the floor of the basin; and that subduction continued beneath the island arc until at least the Senonian time. The younger plutons in the arc were emplaced at roughly the same time as turbidite facies rocks at deep levels in the marginal basin were being affected by penetrative deformation and metamorphism. The timing of events on South Georgia agrees closely with that deduced for the continuation of the same island arc–marginal basin system in South America. The 180–200 Ma plutons correlate with an older suite of plutonic rocks reported from the Antarctic Peninsula and southern Andes; they are part of a once-continuous magmatic arc related to subduction of the Pacific plate beneath Gondwanaland during the early Mesozoic.

Evolution of the Pannonian Basin System: 2. Subsidence and thermal history

Tectonics ◽  
1983 ◽  
Vol 2 (1) ◽  
pp. 91-137 ◽  
Author(s):  
Leigh Royden ◽  
F. Horváth ◽  
A. Nagymarosy ◽  
L. Stegena
Keyword(s):  
Thermal History ◽  
Pannonian Basin ◽  
System 2 ◽  
Basin System

A re-examination of the type area of the Devono-Mississippian Cariboo Orogeny, central British Columbia

1981 ◽  
Vol 18 (12) ◽  
pp. 1767-1775 ◽  
Author(s):  
L. C. Struik
Keyword(s):  
British Columbia ◽  
North American ◽  
Volcanic Rocks ◽  
The Other ◽  
Type Locality ◽  
The Third ◽  
The North ◽  
Early Mesozoic ◽  
Type Area ◽  
North American Craton

Three tectonostratigraphic successions are established from remapping of the area near Barkerville and Cariboo River. The first, of Late Proterozoic to Cambrian sediments, was deposited on the shallow to moderately deep platformal shelf west of and derived from the exposed North American craton. The second is an unconformably overlying Ordovician to Permian sequence of sedimentary and volcanic rocks representing a basinal environment with periodic highs. These packages of sediments were deposited on the North American craton and its western transitional extensions. The third succession, composed of oceanic chert and basalt of the Permo-Pennsylvanian Antler Formation, was thrust eastward over the other two during the early Mesozoic. The three successions were folded, faulted, and metamorphosed during the mid-Mesozoic Columbian Orogeny. The Devono-Mississippian Cariboo Orogeny, which was thought to have affected all of the first sequence and part of the second, could not be documented in its type locality. The geology of the Barkerville – Cariboo River area has many similarities with that of Selwyn Basin and Cassiar platform of northern British Columbia and Yukon.

scholarly journals High-resolution stratigraphy of the Newark rift basin (early Mesozoic, eastern North America)

1996 ◽  
Vol 108 (1) ◽  
pp. 40-77 ◽  
Author(s):  
Paul E. Olsen ◽  
Dennis V. Kent ◽  
Bruce Cornet ◽  
William K. Witte ◽  
Roy W. Schlische
Keyword(s):  
High Resolution ◽  
North America ◽  
Eastern North America ◽  
Rift Basin ◽  
Early Mesozoic
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