Tectonic and sedimentary basin evolution of the eastern Bangong–Nujiang zone (Tibet): a Reading cycle
| العنوان: | Tectonic and sedimentary basin evolution of the eastern Bangong–Nujiang zone (Tibet): a Reading cycle |
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| المؤلفون: | Pu Jun Wang, Werner Schneider, Frank Mattern, Cai Li |
| المصدر: | International Journal of Earth Sciences. 92:228-254 |
| بيانات النشر: | Springer Science and Business Media LLC, 2003. |
| سنة النشر: | 2003 |
| مصطلحات موضوعية: | Paleontology, geography, geography.geographical_feature_category, Rift, Sedimentary basin analysis, Transtension, General Earth and Planetary Sciences, Structural basin, Sedimentary basin, Oceanic basin, Ophiolite, Transpression, Geology |
| الوصف: | The ophiolite-bearing Bangong–Nujiang zone (BNZ) traversing central Tibet from east to west separates the Qiangtang block in the north from the Lhasa block in the south. Their stratigraphic development indicates that both blocks once formed a continuous continental platform until the Late Triassic. Following Late Paleozoic–Triassic rifting, ocean crust formed between both blocks during the Late Triassic creating the Dongqiao–Naqu basin (DNB) among other basins (Yu et al. 1991). The analysis of the rift flank sequences reveals that rifting was dominated by transtension. The basin was shortened by post-Mid-Cretaceous transpression. Thus, the overall basin evolution represents a Reading cycle despite some active margin processes which gave this cycle a special imprint. Major basin parts were preserved despite transpressional shortening suggesting that the eastern BNZ represents a remnant basin. Our understanding of the DNB solves the prior problem of viewing the BNZ as a Mid–Late Jurassic collisional suture although typical collision-related deformation, thickening, mountain building, as well as related molasse formation are lacking. Our model also explains the scattered linear ophiolite distribution by local transpression of remnant oceanic basin floor without having to consider problematic long range ophiolite thrusting. |
| تدمد: | 1437-3262 1437-3254 |
| DOI: | 10.1007/s00531-003-0311-5 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2406cb1cad8f9d694e3bc8fe42824e66 https://doi.org/10.1007/s00531-003-0311-5 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........2406cb1cad8f9d694e3bc8fe42824e66 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14373262 14373254 |
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| DOI: | 10.1007/s00531-003-0311-5 |