THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA

The abyssal hills of the North-Western Pacific plate are characterized on the basis of the continuous seismic profiling and stratigraphic data on the Meso–Cenozoic sedimentary trappean cover, and the relative ages of the hills are estimated. The study revealed the dominating occurrence of asymmetric...

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Main Author: V. L. Lomtev
Format: Article
Language:English
Published: Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust 2016-06-01
Series:Геодинамика и тектонофизика
Subjects:
Online Access:https://www.gt-crust.ru/jour/article/view/257
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author V. L. Lomtev
author_facet V. L. Lomtev
author_sort V. L. Lomtev
collection DOAJ
description The abyssal hills of the North-Western Pacific plate are characterized on the basis of the continuous seismic profiling and stratigraphic data on the Meso–Cenozoic sedimentary trappean cover, and the relative ages of the hills are estimated. The study revealed the dominating occurrence of asymmetric tectonic and relatively symmetric injection hills of the Late Cenozoic age with no signs of volcanic activity. The tectonic hills are mainly associated with faults in the eastern allochthone, a result of gradual shearing of all layers of the oceanic crust. The injection hills are related to rootless granite protrusions from the lower layer of the crust (probably, granitized, primary sedimentary strata of the epicontinental ocean). Several hills are of combined tectonic and injective origin and have features inherited from the previous peneplanation era. The paper also describes the characteristics of several hills of other genesis.
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spelling doaj-art-97df3fcbeafe4179bd7be00153d564e32025-08-20T03:01:59ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2016-06-017227328810.5800/GT-2016-7-2-0206201THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATAV. L. Lomtev0Institute of Marine Geology and Geophysics, Far East Branch of RASThe abyssal hills of the North-Western Pacific plate are characterized on the basis of the continuous seismic profiling and stratigraphic data on the Meso–Cenozoic sedimentary trappean cover, and the relative ages of the hills are estimated. The study revealed the dominating occurrence of asymmetric tectonic and relatively symmetric injection hills of the Late Cenozoic age with no signs of volcanic activity. The tectonic hills are mainly associated with faults in the eastern allochthone, a result of gradual shearing of all layers of the oceanic crust. The injection hills are related to rootless granite protrusions from the lower layer of the crust (probably, granitized, primary sedimentary strata of the epicontinental ocean). Several hills are of combined tectonic and injective origin and have features inherited from the previous peneplanation era. The paper also describes the characteristics of several hills of other genesis.https://www.gt-crust.ru/jour/article/view/257north-western pacific platemeso-cenozoic sedimentary trappean coverabyssal hilloceanic crust shearingprotrusion
spellingShingle V. L. Lomtev
THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
Геодинамика и тектонофизика
north-western pacific plate
meso-cenozoic sedimentary trappean cover
abyssal hill
oceanic crust shearing
protrusion
title THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
title_full THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
title_fullStr THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
title_full_unstemmed THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
title_short THE STRUCTURE AND HISTORY OF ABYSSAL HILLS OF THE NORTH-WESTERN PACIFIC PLATE FROM CONTINUOUS SEISMIC PROFILING AND STRATIGRAPHIC DATA
title_sort structure and history of abyssal hills of the north western pacific plate from continuous seismic profiling and stratigraphic data
topic north-western pacific plate
meso-cenozoic sedimentary trappean cover
abyssal hill
oceanic crust shearing
protrusion
url https://www.gt-crust.ru/jour/article/view/257
work_keys_str_mv AT vllomtev thestructureandhistoryofabyssalhillsofthenorthwesternpacificplatefromcontinuousseismicprofilingandstratigraphicdata
AT vllomtev structureandhistoryofabyssalhillsofthenorthwesternpacificplatefromcontinuousseismicprofilingandstratigraphicdata