Bedded cherts associated with greenstones in the sawadani and shimantogawa groups, Southwest Japan

Hiroyoshi Sano

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Bedded cherts that are closely associated with greenstones are found in the Sawadani Group, Late Carboniferous to Early Permian in age, and the Shimantogawa Group, mostly of Cretaceous age, both in the Outer Zone of Southwest Japan. They differ from the cherts recovered from the open-ocean by the DSDP with respect to stratigraphic relation to greenstones, lithologic associations, thickness, and sedimentary structures. Petrographic characteristics of the Sawadani and Shimantogawa cherts are similar to those of the Tethyan Mesozoic cherts. Bedded cherts commonly occur in the lower part of the Sawadani formation and rarely in the Takano Formation. Cherts occur on greenstones or are interbedded between flows and occur exclusively in the lower formation and are associated with greenstones that include lava and hyaloclastite. This lithologic association is common through the Shimantogawa Group from the Kanto Mountains of central Japan to the Ryukyu Islands. Cherts are reported to yield Cretaceous and Late Jurassic radiolarian assemblages.

Original languageEnglish
Pages (from-to)427-440
Number of pages14
JournalDevelopments in Sedimentology
Volume36
Issue numberC
DOIs
Publication statusPublished - Jan 1 1983

Fingerprint

greenstone
hyaloclastite
Cretaceous
sedimentary structure
Deep Sea Drilling Project
open ocean
lava
Permian
Jurassic
mountain

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Geology

Cite this

Bedded cherts associated with greenstones in the sawadani and shimantogawa groups, Southwest Japan. / Sano, Hiroyoshi.

In: Developments in Sedimentology, Vol. 36, No. C, 01.01.1983, p. 427-440.

Research output: Contribution to journalArticle

@article{23c3e116c1804a8b8e2cfc5e963524d0,
title = "Bedded cherts associated with greenstones in the sawadani and shimantogawa groups, Southwest Japan",
abstract = "Bedded cherts that are closely associated with greenstones are found in the Sawadani Group, Late Carboniferous to Early Permian in age, and the Shimantogawa Group, mostly of Cretaceous age, both in the Outer Zone of Southwest Japan. They differ from the cherts recovered from the open-ocean by the DSDP with respect to stratigraphic relation to greenstones, lithologic associations, thickness, and sedimentary structures. Petrographic characteristics of the Sawadani and Shimantogawa cherts are similar to those of the Tethyan Mesozoic cherts. Bedded cherts commonly occur in the lower part of the Sawadani formation and rarely in the Takano Formation. Cherts occur on greenstones or are interbedded between flows and occur exclusively in the lower formation and are associated with greenstones that include lava and hyaloclastite. This lithologic association is common through the Shimantogawa Group from the Kanto Mountains of central Japan to the Ryukyu Islands. Cherts are reported to yield Cretaceous and Late Jurassic radiolarian assemblages.",
author = "Hiroyoshi Sano",
year = "1983",
month = "1",
day = "1",
doi = "10.1016/S0070-4571(08)70104-3",
language = "English",
volume = "36",
pages = "427--440",
journal = "Developments in Sedimentology",
issn = "0070-4571",
publisher = "Elsevier",
number = "C",

}

TY - JOUR

T1 - Bedded cherts associated with greenstones in the sawadani and shimantogawa groups, Southwest Japan

AU - Sano, Hiroyoshi

PY - 1983/1/1

Y1 - 1983/1/1

N2 - Bedded cherts that are closely associated with greenstones are found in the Sawadani Group, Late Carboniferous to Early Permian in age, and the Shimantogawa Group, mostly of Cretaceous age, both in the Outer Zone of Southwest Japan. They differ from the cherts recovered from the open-ocean by the DSDP with respect to stratigraphic relation to greenstones, lithologic associations, thickness, and sedimentary structures. Petrographic characteristics of the Sawadani and Shimantogawa cherts are similar to those of the Tethyan Mesozoic cherts. Bedded cherts commonly occur in the lower part of the Sawadani formation and rarely in the Takano Formation. Cherts occur on greenstones or are interbedded between flows and occur exclusively in the lower formation and are associated with greenstones that include lava and hyaloclastite. This lithologic association is common through the Shimantogawa Group from the Kanto Mountains of central Japan to the Ryukyu Islands. Cherts are reported to yield Cretaceous and Late Jurassic radiolarian assemblages.

AB - Bedded cherts that are closely associated with greenstones are found in the Sawadani Group, Late Carboniferous to Early Permian in age, and the Shimantogawa Group, mostly of Cretaceous age, both in the Outer Zone of Southwest Japan. They differ from the cherts recovered from the open-ocean by the DSDP with respect to stratigraphic relation to greenstones, lithologic associations, thickness, and sedimentary structures. Petrographic characteristics of the Sawadani and Shimantogawa cherts are similar to those of the Tethyan Mesozoic cherts. Bedded cherts commonly occur in the lower part of the Sawadani formation and rarely in the Takano Formation. Cherts occur on greenstones or are interbedded between flows and occur exclusively in the lower formation and are associated with greenstones that include lava and hyaloclastite. This lithologic association is common through the Shimantogawa Group from the Kanto Mountains of central Japan to the Ryukyu Islands. Cherts are reported to yield Cretaceous and Late Jurassic radiolarian assemblages.

UR - http://www.scopus.com/inward/record.url?scp=77956815483&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77956815483&partnerID=8YFLogxK

U2 - 10.1016/S0070-4571(08)70104-3

DO - 10.1016/S0070-4571(08)70104-3

M3 - Article

VL - 36

SP - 427

EP - 440

JO - Developments in Sedimentology

JF - Developments in Sedimentology

SN - 0070-4571

IS - C

ER -