Rock Magnetic and Petrographical-Mineralogical Studies of the Dredged Rocks from the Submarine Volcanoes of the Sea-of-Okhotsk Slope within the Northern Part of the Kuril Island Arc

被引：3

作者：

Rashidov, V. A. ^{[1
]}

Pilipenko, O. V. ^{[2
]}

Petrova, V. V. ^{[3
]}

机构：

[1] Russian Acad Sci, Inst Volcanol & Seismol, Bulv Piip 9, Petropavlovsk Kamchatski 683006, Russia

[2] Russian Acad Sci, Schmidt Inst Phys Earth, Ul B Gruzinskaya 10, Moscow 123995, Russia

[3] Russian Acad Sci, Inst Geol, Pyzhevskii Per 7, Moscow 119017, Russia

来源：

IZVESTIYA-PHYSICS OF THE SOLID EARTH | 2016年 / 52卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

Kuril Island Arc; Sea-of-Okhotsk slope; submarine volcanoes; rock magnetic properties; titanomagnetite; FLOOR MAGNETISM; TRANSFORM ZONE; PACIFIC-OCEAN; BASALTS; ATLANTIC;

D O I：

10.1134/S1069351316040066

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The rock magnetic properties of the samples of dredged rocks composing the submarine volcanic edifices within the Sea-of-Okhotsk slope of the northern part of the Kuril Island Arc are studied. The measurements of the standard rock magnetic parameters, thermomagnetic analysis, petrographical studies, and microprobe investigations have been carried out. The magnetization of the studied rocks is mainly carried by the pseudo-single domain and multidomain titanomagnetite and low-Ti titanomagnetite grains. The high values of the natural remanent magnetization are due to the pseudo-single-domain structure of the titanomagnetite grains, whereas the high values of magnetic susceptibility are associated with the high concentration of ferrimagnetic grains. The highest Curie points are observed in the titanomagnetite grains of the igneous rocks composing the edifices of the Smirnov, Edelshtein, and 1.4 submarine volcanoes.

引用

页码：550 / 571

页数：22