ABYSSAL HILLS OF THE NORTH-WESTERN PART OF THE PACIFIC OCEAN
https://doi.org/10.15356/0435-4281-2016-2-72-84
Abstract
Features of structure and history formation of abyssal hills of North-Western Pacifi c plate are considered by data of high (120–150 Hz) frequency SCP (seismic continuous profi ling), CDP1 profi le and Meso-Cenozoic, sedimentary-trap cover seismostratigraphy. It was established that asymmetric tectonic and more symmetric injected hills of Late Cenozoic (Neogene-Quaternary) age and without signs of volcanic activity are dominated among them. Tectonic hills are connected with Neogene-Quaternary glide faults of Layers 1–4, injected hills – with rootless, probably granitic, protrusions from Layer 4. The combination of tectonic and injective basis of inherited development from previous peneplanation epoch displayed in some hills structures. Some hills of other structure, origin and age also described: young gas volcano cone, Late Mesozoic volcanoes, and mini cones of black smokers.
About the Author
V. L. Lomtev
Institute of Marine Geology and Geophysics FEB RAS, Yuzhno-Sakhalinsk
Russian Federation
Russian Federation
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For citations:
Lomtev V.L. ABYSSAL HILLS OF THE NORTH-WESTERN PART OF THE PACIFIC OCEAN. Geomorfologiya. 2016;(2):72-84. (In Russ.) https://doi.org/10.15356/0435-4281-2016-2-72-84
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