Late Devonian to Early Carboniferous radiolarian fauna from the Pak Chom area, Loei Province, northeastern Thailand
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概要
- 論文の詳細を見る
A Late Devonian to Early Carboniferous radiolarian fauna is present in chert and siliceous shale of a chert-clastic section along the Khong River, Pak Chom area, at the Thai-Lao border of northeastern Thailand. The radiolarian fauna is composed of Stigmosphaerostylus variospina, Astroentactinia stellata, Astro entactinia multispinosus, Archocyrtium wonae, Archocyrtium riedeli, and other species and corresponds to the Famennian (Late Devonian) to Tournaisian (Early Carboniferous) radiolarian fauna reported from northwestern Europe, Australia, northern and southern Thailand, and southern China. Ten radiolarian species belonging to four genera including one unidentified genus are investigated. The radiolarian-bearing sequence was probably deposited in a pelagic or hemipelagic environment within the Paleotethys Ocean during Late Devonian to Early Carboniferous time. Furthermore, this chert-clastic section of Pak Chom area is thought to be deposited on the Nakhon Thai Block and subducted beneath the Indochina Block. This suggests that the age of subduction and accretion of the Naknon Thai Block is thought to have occurred at least after Early Carboniferous indicated by the occurrence of Late Devonian to Early Carboniferous radiolarians.
- 日本古生物学会の論文
- 2007-06-30
著者
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Sardsud Apsorn
Department Of Mineral Resources
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SAESAENGSEERUNG DOUNGRUTAI
Graduate School of Life and Environmental Sciences, University of Tsukuba
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SASHIDA KATSUO
Graduate School of Life and Environmental Sciences, University of Tsukuba
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Sashida Katsuo
Graduate School Of Life And Environmental Sciences University Of Tsukuba
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Saesaengseerung Doungrutai
Graduate School Of Life And Environmental Sciences University Of Tsukuba
関連論文
- Late Paleozoic radiolarian faunas from northern and northeastern Thailand
- Discovery of Lower Permian radiolarian and conodont faunas from the bedded chert of the Chanthaburi area along the Sra Kaeo suture zone, eastern Thailand
- Reinterprelation of Early and Middle Ordovician conodonts from the Thong Pha Phum area, western Thailand, in the context of new material from western and northern Thailand
- Lower and Middle Ordovician conodonts from the Thung Song and Thung Wa areas, southern peninsular Thailand
- Ordovician-Silurian boundary graptolites of the Satun area, southern peninsular Thailand
- Ordovician sea-level change and paleogeography of the Sibumasu terrane based on the conodont biostratigraphy
- Discovery of Middle Triassic radiolarian fauna from the Nan area along the Nan-Uttaradit suture zone, northern Thailand
- Late Devonian to Early Carboniferous radiolarian fauna from the Pak Chom area, Loei Province, northeastern Thailand
- Additional note on earliest Cretaceous entactinarians (Radiolaria) from the Mariana Trench