Magnetic properties of siliceous marine sediments in Northern Hokkaido, Japan: a quantitative tectono-sedimentological study of basins along an active margin

2013 ◽  
Vol 25 (6) ◽  
pp. 738-750
Author(s):  
Y. Itoh ◽  
S. Kusumoto ◽  
T. Inoue
Author(s):  
Т.Д. Гараева

В статье приводятся результаты палеомагнитных исследований разрезов континентальных и морских отложений Каспийского моря и их корреляция. Палеомагнитные исследования проводились на восемнадцати разрезах: в Среднекуринской депрессии разрез г. Дуздаг, хребты Боздаг и Караджа, Нафталан; в Нижнекуринской депрессии разрез хр. Малый Харами; на Абшеронском полуострове – разрез г. Бакинский ярус и в Каспийском море: острова Булла-Дениз, Гарасу и Камень Персиянина. Расчленены плейстоценовые осадки Каспийского моря и депрессионных зон Азербайджана, проведена межрегиональная корреляция и датированы выделенные геологические события по палеомагнитным данным. In this paper we present the results of paleomagnetic studies of the sections of continental and marine sediments of the Caspian Sea and their correlation. Paleomagnetic studies have been conducted on 18 sections: in a middle Kura depression section of them. Duzdag, Bozdag range, Karadja range, Naftalan; in a lower Kura depression Lesser Harami range; in Absheron peninsula – section of Baku stage and in Caspian Sea: is. Bulla- Deniz, is. Qarasu and is. Kamen Persianina. Separated Pleistocene sediments of the Caspian Sea and depression zones of Azerbaijan, conducted interregional correlations and dated selected geological events according to paleonagnetic data.


2016 ◽  
Vol 23 (0) ◽  
pp. 41-51 ◽  
Author(s):  
Noriko Kawamura ◽  
Naoto Ishikawa ◽  
Atsushi Kurasawa

2020 ◽  
Author(s):  
Myriam Kars ◽  
Tetsuya Fukuta ◽  
Carina Becker

<p><span>The Nankai Trough is an accretionary complex which extends over several thousands of kilometers along the Japanese Pacific coast. Many ocean scientific drilling expeditions have taken place in this zone to better understand the mechanisms of big earthquakes and generation of devastating tsunamis. Offshore Cape Muroto, Shikoku Island, is one of investigated zones. A recent International Ocean Discovery Program (IODP) expedition (IODP Expedition 370) in the area has focused on the temperature limit of life in deep subseafloor sediments. Here we present paleomagnetic and rock magnetic preliminary results on two neighboring sites in this zone drilled during two former Ocean Drilling Program (ODP) legs: Site 808 of ODP Leg 131 and Site 1174 of ODP Leg 190. At all sites, shipboard magnetostratigraphy was challenging because of a strong diagenetic alteration of the magnetic mineral assemblages. Four main downcore magnetic zones, characterized by specific magnetic properties and mineralogy, are identified. At Site 808, catagenesis of the organic matter has been proposed to explain the downcore rock magnetic properties. This explanation however could not stand for Site 1174. We present here a first attempt of a comparative paleomagnetic and rock magnetic study in high temperature marine sediments, off Cape Muroto. </span></p>


1996 ◽  
Vol 23 (20) ◽  
pp. 2843-2846 ◽  
Author(s):  
B. A. Housen ◽  
S. K. Banerjee ◽  
B. M. Moskowitz

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