Normal view
MARC view
An 850–820 Ma LIP dismembered during breakup of the Rodinia supercontinent and destroyed by Early Paleozoic continental subduction in the northern Tibetan Plateau, NW China (Record no. 425255)
[ view plain ]
| 000 -Маркер записи | |
|---|---|
| Контрольное поле постоянной длины | 03497nab a2200349 c 4500 |
| 001 - Контрольный номер | |
| Контрольное поле | vtls000576848 |
| 005 - Дата корректировки | |
| Контрольное поле | 20230319211326.0 |
| 007 - Кодируемые данные (физ. описан.) | |
| Контрольное поле постоянной длины | cr | |
| 008 - Кодируемые данные | |
| Контрольное поле постоянной длины | 170602|2016 ne s a eng dd |
| 024 7# - Прочие стандартные номера | |
| Стандартный номер | 10.1016/j.precamres.2016.07.007 |
| Источник номера | doi |
| 035 ## - Системный контрольный номер | |
| Системный контрольный номер | to000576848 |
| 040 ## - Источник каталогиз. | |
| Служба первич. каталог. | RU-ToGU |
| Код языка каталог. | rus |
| Служба, преобразующая запись | RU-ToGU |
| 245 10 - Заглавие | |
| Заглавие | An 850–820 Ma LIP dismembered during breakup of the Rodinia supercontinent and destroyed by Early Paleozoic continental subduction in the northern Tibetan Plateau, NW China |
| Ответственность | X. Xu, S. Song, M. B. Allen и др. |
| 504 ## - Библиография | |
| Библиография | Библиогр.: с. 71-73 |
| 520 3# - Аннотация | |
| Аннотация | Neoproterozoic intraplate magmatism is widely distributed in NW China and generally thought to be related to the breakup of the Rodinia supercontinent. Here we report a fragmented Large Igneous Province (LIP) formed at 850–820 Ma in the northern margin of the Qaidam block, northern Tibetan Plateau (named herein as the “North Qaidam LIP”). The associated rocks have undergone various grades of metamorphism from greenschist to ultrahigh-pressure (UHP) eclogite facies, including the greenschist-facies Yingfeng dolerite dikes and basalts (846–821 Ma), the amphibolite- to HP granulite-facies Aolaoshan meta-volcanic sequence (protolith age of 832 Ma and metamorphic age of 439 Ma), and the North Qaidam UHP eclogites (protolith age of 847–828 Ma and metamorphic age of 440–420 Ma). Geochemical data reveal that they resemble present-day E-MORB/OIB and typical continental flood basalts. These features, together with high potential temperatures (Tp = 1434–1524 °C) for “primary” magmas, suggest that these basaltic rocks were most likely derived from a mantle plume source and were emplaced in a continental extensional environment.<br/><br/> Their varying metamorphic facies record a range of locations along the underthrust continental slab from near-surface (Yingfeng dolerites/basalts), middle (Aolaoshan amphibolites) to deep (N. Qaidam UHP eclogites) sites with depths greater than 120 km. The large spatial distribution (potentially >0.1 Mkm2), short duration (<30 Myr) and intraplate geochemical character suggest that these igneous rocks are remnants of the North Qaidam LIP caused by the upwelling of a mantle plume during 850–820 Ma. We consider that the North Qaidam LIP represents the onset of a protracted break-up history and precedes subsequent multiple episodes of rifting. These Neoproterozoic igneous rocks in the Qaidam block were separated from the contemporaneous magmatic suites over Australia, South China and Tarim by the breakup of Rodinia, and were further destroyed by the subduction of the passive continental margin of the Qaidam block in the Early Paleozoic (440–420 Ma). |
| 653 ## - Ключевые слова | |
| Ключевые слова | ранний палеозой |
| 653 ## - Ключевые слова | |
| Ключевые слова | Северный Тибет |
| 653 ## - Ключевые слова | |
| Ключевые слова | Родиния, суперконтинент |
| 655 #4 - Термин индексирования — жанр/форма | |
| Жанр/форма | статьи в журналах |
| 9 (RLIN) | 879358 |
| 700 1# - Другие авторы | |
| Другие авторы | Xu, Xin |
| 9 (RLIN) | 452352 |
| 700 1# - Другие авторы | |
| Другие авторы | Allen, Mark B. |
| 9 (RLIN) | 476872 |
| 700 1# - Другие авторы | |
| Другие авторы | Ernst, Richard E. |
| 9 (RLIN) | 218658 |
| 700 1# - Другие авторы | |
| Другие авторы | Niu, Yaoling |
| 9 (RLIN) | 476873 |
| 700 1# - Другие авторы | |
| Другие авторы | Su, Li |
| 9 (RLIN) | 476874 |
| 700 1# - Другие авторы | |
| Другие авторы | Song, Shuguang |
| 9 (RLIN) | 476875 |
| 773 0# - Источник информации | |
| Название источника | Precambrian research |
| Место и дата издания | 2016 |
| Прочая информация | Vol. 282. P. 52-73 |
| ISSN | 0301-9268 |
| 852 4# - Местонахождение единицы хранения | |
| Код организации-хранителя | RU-ToGU |
| 856 7# - Электронный адрес документа | |
| URL | <a href="http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000576848">http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000576848</a> |
| 908 ## - Параметр входа данных | |
| Параметр входа данных | статья |
| 999 ## - Системные контрольные номера (Koha) | |
| biblionumber (Koha) | 425255 |
No items available.