Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand

Diverse and significant well-preserved radiolarians were obtained from ribbon-bedded chert in an area to the north of Chiang Dao city, Chiang Mai, northern Thailand. The area is mainly composed of an accretionary complex, which is recently considered as a key part of a newly described suture zone in...

Full description

Saved in:
Bibliographic Details
Main Authors: Wonganan N., Caridroit M.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-20444444256&partnerID=40&md5=0c813427fafa2f61312fd3ba54023562
http://cmuir.cmu.ac.th/handle/6653943832/5009
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Chiang Mai University
Language: English
id th-cmuir.6653943832-5009
record_format dspace
spelling th-cmuir.6653943832-50092014-08-30T02:56:03Z Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand Wonganan N. Caridroit M. Diverse and significant well-preserved radiolarians were obtained from ribbon-bedded chert in an area to the north of Chiang Dao city, Chiang Mai, northern Thailand. The area is mainly composed of an accretionary complex, which is recently considered as a key part of a newly described suture zone in the Southeast Asian region. Devonian radiolarian-bearing cherts are exposed within this area. These cherts contain identical radiolarian faunas, which include nine families and forty-three species belonging to thirteen genera. Among these faunas, Entactinaria are dominant. Three new species, Trilonche chiangdaoensis, Trilonche dihelicis and Trilonche vachardi, are erected and about thirty species, which have never been reported from Thailand, are also present. The Trilonche minax (lower Frasnian) radiolarian assemblage from Australia is recognized in the area. The radiolarian faunas are systematically described and relationships between them and fauna from adjacent radiolarian provinces are discussed. These cherts with their radiolarian faunas are evidence for the presence of a wide paleo-ocean once existed between Shan-Thai and Indochina continental terranes. 2014-08-30T02:56:03Z 2014-08-30T02:56:03Z 2005 Article 00262803 10.2113/51.1.39 http://www.scopus.com/inward/record.url?eid=2-s2.0-20444444256&partnerID=40&md5=0c813427fafa2f61312fd3ba54023562 http://cmuir.cmu.ac.th/handle/6653943832/5009 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Diverse and significant well-preserved radiolarians were obtained from ribbon-bedded chert in an area to the north of Chiang Dao city, Chiang Mai, northern Thailand. The area is mainly composed of an accretionary complex, which is recently considered as a key part of a newly described suture zone in the Southeast Asian region. Devonian radiolarian-bearing cherts are exposed within this area. These cherts contain identical radiolarian faunas, which include nine families and forty-three species belonging to thirteen genera. Among these faunas, Entactinaria are dominant. Three new species, Trilonche chiangdaoensis, Trilonche dihelicis and Trilonche vachardi, are erected and about thirty species, which have never been reported from Thailand, are also present. The Trilonche minax (lower Frasnian) radiolarian assemblage from Australia is recognized in the area. The radiolarian faunas are systematically described and relationships between them and fauna from adjacent radiolarian provinces are discussed. These cherts with their radiolarian faunas are evidence for the presence of a wide paleo-ocean once existed between Shan-Thai and Indochina continental terranes.
format Article
author Wonganan N.
Caridroit M.
spellingShingle Wonganan N.
Caridroit M.
Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
author_facet Wonganan N.
Caridroit M.
author_sort Wonganan N.
title Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
title_short Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
title_full Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
title_fullStr Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
title_full_unstemmed Middle and Upper Devonian radiolarian faunas from Chiang Dao area, Chiang Mai province, northern Thailand
title_sort middle and upper devonian radiolarian faunas from chiang dao area, chiang mai province, northern thailand
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-20444444256&partnerID=40&md5=0c813427fafa2f61312fd3ba54023562
http://cmuir.cmu.ac.th/handle/6653943832/5009
_version_ 1681420344451137536