Sedimentology and provenance of the Upper Jurassic Naknek Formation, Talkeetna Mountains, Alaska: Bearings on the accretionary tectonic history of the Wrangellia composite terrane

2005 ◽  
Vol 117 (5) ◽  
pp. 570 ◽  
Author(s):  
Jeffrey M. Trop ◽  
Darren A. Szuch ◽  
Matthew Rioux ◽  
Robert B. Blodgett
Keyword(s):  
Upper Jurassic ◽  
Tectonic History ◽  
History Of ◽  
Talkeetna Mountains

Histoire de l'evolution tectonique de la zone plissee alpine de l'Europe orientale et de l'Asie-Mineure

1962 ◽  
Vol S7-IV (2) ◽  
pp. 182-200
Author(s):  
M. V. Muratov
Keyword(s):  
Middle Eocene ◽  
Eastern Mediterranean ◽  
Early Period ◽  
Upper Jurassic ◽  
The Black Sea ◽  
Second Phase ◽  
Tectonic History ◽  
Third Phase ◽  
History Of ◽  
Second Period

Abstract Recent literature on the tectonic evolution of the Alpine chain in eastern Europe and Asia Minor is reviewed. Two major periods are recognized in describing the tectonic history of the region. The first embraces all the Paleozoic, ending with the Hercynian orogeny, and probably represents an early period of geosynclinal evolution. The second period is represented by a geosynclinal stage, including the Mesozoic and part of the Paleogene up to the end of the Oligocene, and a terminal stage of orogenesis embracing the Neogene and Quaternary. The geosynclinal stage of the second period can be divided into three phases--an early phase embracing the Triassic, lower and middle and perhaps the upper Jurassic and Cretaceous, and characterized by formation of the first Triassic basins on the peneplaned Paleozoic landscape; a second phase, Cretaceous-middle Eocene, characterized by enlargement of the geosynclines and deposition of flysch; and a third phase which began after the end of the middle Eocene, characterized by closing of the geosynclines. Oceanic trenches which developed in the Black Sea and the southern Caspian, Marmara, Aegean, Ionian and eastern Mediterranean seas are recent structures not connected with the geosynclinal evolution and are superimposed on the continental surface of the geosynclinal structures. The arrangement of the depressions and the uplift during the geosynclinal stage were determined by abyssal faults imposed during the Paleozoic. Magmatic intrusions and volcanism developed in the late geosynclinal phases.

Tectonic history of the Queen Charlotte Islands and adjacent areas—a model

1981 ◽  
Vol 18 (11) ◽  
pp. 1717-1739 ◽  
Author(s):  
C. J. Yorath ◽  
R. L. Chase
Keyword(s):  
Fault Zone ◽  
Upper Jurassic ◽  
Normal Faults ◽  
Queen Charlotte Islands ◽  
Tectonic History ◽  
History Of ◽  
Middle Component ◽  
High Level ◽  
Paleozoic Rocks ◽  
Alexander Terrane

The region including Queen Charlotte Islands, Hecate Strait, and Queen Charlotte Sound is underlain by two allochthonous terranes, Wrangellia and the Alexander terrane. The suture between them occurs in central Graham Island and central Hecate Strait and is coincident with the traces of the Sandspit and Rennell Sound fault zones, each of which developed in response to crustal rifting in Queen Charlotte Sound during mid-Tertiary time.The stratigraphic succession comprises four tectonic assemblages. (1) The allochthonous assemblages comprise Paleozoic rocks of the Alexander terrane and Upper Triassic and Jurassic rocks of Wrangellia, which on the basis of paleomagnetic and biogeographical data are clearly exotic. The distribution of these terranes beneath Queen Charlotte Sound and Hecate Strait is supported by geophysical information and subsurface data obtained from offshore wells. (2) The suture assemblage is represented by extremely coarse conglomerates, massive graywackes, and turbidites of Early Cretaceous age, and possibly by Upper Jurassic plutons. (3) The post-suture assemblage is expressed by the tripartite succession of the mid- to Upper Cretaceous Queen Charlotte Group whose middle component, the Honna Formation, comprises polymictic conglomerates that may have resulted from the final accretion of the amalgamated crustal fragments of the Alexander Terrane and Wrangellia to the continental margin. (4) The rift assemblage is expressed by mid- to upper Tertiary volcanics, epizonal plutons, and terrigenous clastics. Rifting is believed to have occurred in Queen Charlotte Sound above a mantle plume and resulted in crustal attenuation through development of listric, crustal-penetrative normal faults, and concurrent extrusion of subaerial volcanics and emplacement of high-level plutons. The attenuation caused northward motion of the Queen Charlotte Islands along the Louscoone Inlet – Sandspit fault zone and subsidence in Queen Charlotte Sound where Lower Miocene marine sediments were deposited within the rift zone. Later, additional rifting in southern Hecate Strait resulted in the reactivation of the old suture zone, manifest as the Rennell Sound fault zone. Concurrent with continued terrigenous deposition and volcanism, the Queen Charlotte Islands moved northwesterly along the Rennell Sound Fault, which disrupted the earlier fault trend. The final rotation of the islands to their modern position was accomplished through left-lateral motion along the Beresford Bay and Langara Faults.

Tectonic History of Hoop Fault Complex, Barents Sea/Norway

2020 ◽  
Author(s):  
Volker Schuller ◽  
István Dunkl ◽  
Zsolt Schleder ◽  
Eirik Stueland
Keyword(s):  
Barents Sea ◽  
Early Stage ◽  
Upper Jurassic ◽  
Late Triassic ◽  
Tectonic Activity ◽  
Burial Depth ◽  
Seismic Section ◽  
Accommodation Space ◽  
Tectonic History ◽  
History Of

<p>The Barents Sea consists of several tectonic elements which were formed at different plate tectonic collisional and rifting stages. This work focuses on the Early Mesozoic to recent events of the central Barents Sea, the eastern edge of the Bjarmaland platform.</p><p>We have analysed the clastic deposits of Mid-Triassic to Upper Jurassic to reconstruct the tectonic history of the Hoop Fault Complex, Barents Sea/Norway. Apatite fission track and (U-Th)/He thermochronology were used to determine the maximum burial depths and exhumation history. According to the combined evaluation of results from shale ductility analysis (BIB-SEM), fault kinematic analysis and structural modelling (section balancing based on a 125 km long 2D seismic section line) the following tectonic evolution can be drawn: deflation of late Palaeozoic salt deposits was initiated by the tectonic activity on the early structures of the Hoop Fault zone. The orthogonal faults of the Hoop Fault Complex developed at the early stage, during Late Triassic to Early Jurassic times at relatively shallow depth, below 1000m. Ongoing subsidence related to the extension caused by the opening of the Atlantic Ocean created accommodation space for Upper Jurassic to Cenozoic deposits with maximum burial depth of 2000 m for the analysed Mid-Jurassic rocks. The exhumation of the Hoop Fault complex started around 10 Ma and remained constant until Quaternary times (140 m/Myr).</p>

Tectonic history of the Dent Blanche

2017 ◽  
Vol 9 (2.1) ◽  
pp. 1-73 ◽  
Author(s):  
Paola Manzotti ◽  
Michel Ballèvrei
Keyword(s):  
Tectonic History ◽  
History Of

TECTONIC HISTORY OF THE EASTERN PIEDMONT IN SOUTH CAROLINA

2016 ◽  
Author(s):  
C. Scott Howard ◽  
◽  
Robert H. Morrow ◽  
Donald T. Secor
Keyword(s):  
South Carolina ◽  
Tectonic History ◽  
History Of

STYLE AND TIMING OF FOLDING IN THE WHITEHALL QUADRANGLE, EASTERN ADIRONDACKS: IMPLICATIONS FOR THE TECTONIC HISTORY OF THE ADIRONDACK HIGHLANDS

2016 ◽  
Author(s):  
Paul Southard ◽  
◽  
Gavin D. Goeler ◽  
Michael L. Williams ◽  
Timothy W. Grover ◽  
...  
Keyword(s):  
Tectonic History ◽  
History Of

THE TECTONIC HISTORY OF THE PACIFIC OCEAN BASIN SINCE CHRON 34Y (83 MA)

2017 ◽  
Author(s):  
Nicky M. Wright ◽  
◽  
Maria Seton ◽  
Simon E. Williams ◽  
R. Dietmar Müller
Keyword(s):  
Pacific Ocean ◽  
Ocean Basin ◽  
Tectonic History ◽  
The Pacific ◽  
History Of ◽  
The Pacific Ocean
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