Mississippian (early Carboniferous) radiolarian biostratigraphy of northern Thailand (Chiang Dao area)
| Autor: | Nutthawut Wonganan, Martial Caridroit, Carine Randon |
|---|---|
| Přispěvatelé: | Department of Geological Sciences, Chiang Mai University (CMU), Laboratoire de paléontologie et paleogéographie du paleozoique (LPPP), Université de Lille, Sciences et Technologies-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
010506 paleontology
Paleozoic Radiolarian Biostratigraphy 010502 geochemistry & geophysics 01 natural sciences Devonian Paleontology Carboniferous Conodont Northern Thailand Assemblage (archaeology) 0105 earth and related environmental sciences biology 15. Life on land biology.organism_classification Radiolarite Space and Planetary Science Chiang Dao [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Geology Radiolaria |
| Zdroj: | Geobios Geobios, Elsevier, 2007, 40, pp.875-888 |
| ISSN: | 0016-6995 |
| Popis: | International audience; Well-preserved Carboniferous radiolarian faunas were obtained from ribbon-bedded siliceous sediments (radiolarites) north of Chiang Dao city, Chiang Mai province, northern Thailand. These sediments are rich in identifiable radiolarian faunas, including more than 44 species and subspecies belonging to 15 genera. Among them, Albaillellaria and Latentifistularia are dominant, but few Entactinaria are present. Five Early Carboniferous radiolarian assemblage zones are recognised and compared to those of Germany, France and North America. They are, in ascending order: the Albaillella paradoxa gr. assemblage; the Albaillella indensis gr. assemblage: the Albaillella cartalla-Albaillella furcata furcata assemblage which includes the Palaeolithocyclia rota subassemblage; and the A. furcata rockensis-Latentifistula impella gr. assemblage. The age assignment of each assemblage is well-controlled by co-occurring conodonts, which are abundant during this time interval in the area. The Thai radiolarian assemblage zones are rather similar to those of Germany and North America, indicating that the albaillellarian form has a global distribution and can be readily used as a world key indicative fauna. These results also provide an additional data set indicating that distal oceanic deposits are present in northern Thailand from the Devonian to the Late Triassic, which provides evidence for a long-lived oceanic realm between the Indochina and Shan-Thai continental terranes (nearly 200 My). |
| Databáze: | OpenAIRE |
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