Supplemental Material: Terrestrial paleoclimate transition associated with continental weathering and drift during the Aptian–Albian of East Asia
0
Citation
0
Reference
10
Related Paper
Abstract:
<p>Table S1: Climate indicators from element and isotope geochemistry, and clay and carbonate minerals from boreholes FY-2, FY-1, and DY-1 in the Fuxin Basin. Table S2: Palynomorph assemblage from borehole FY-2 in the Fuxin Basin. Figure S1: Correlated sequence stratigraphy and sedimentary facies with positions of measured samples in the Fuxin Basin from borehole FY-2 in the west (A), FY-1 in the center (B), and DY-1 in the east (C) (modified after Jia et al., 2021). Figure S2: Diagrams of Al2O3 and TiO2 and δ13C and δ18O values for organic-rich mudrocks from boreholes FY-2 (A, D), FY-1 (B, E), and DY-1 (C, F). Figure S3. Microscopic characteristics of carbonate minerals observed in SEM (A) and thin section images (B) of organic-rich mudrocks from borehole FY-2. </p>Keywords:
Aptian
Paleoclimatology
Aptian
Tethys Ocean
Cite
Citations (41)
Aptian-Albian 系列被描绘，在突尼斯，由处于沉淀率的几个变化并且在中央、南部的突尼斯记录在 Albian 和 Aptian 之间的分离不顺从。在中央突尼斯上面的 Aptian，回归与一个低海水平看台被支撑直到 Albian 的开始。在这份报纸，从中央突尼斯聚集的井数据暴露联系到几部分沉积差距，侵蚀表面和不顺从并且相关， Aptian 危机在 Tethyan 规模加亮的很好表示的 Aptian-Albian 中断。这个后者与在有为 halokinesis 运动和 magmatism 负责的非洲的 rifting 的同时发生的 extensional 政体是同时代的并且在中央突尼斯像倾斜的块和半 grabens 一样导致 paleoreliefs 的建立。免职从站台外形显示出地区性的中断和侧面的转变到南方到，开的海洋的外形到北方。在正常指责以内的这个领域的结构的配置， horsts 和 grabens 与不同沉淀率导致了几不同的盆的建立。不和特殊发生在附近并且向上高举的块和出现土地并且特别与 Aptian 礁石，石灰岩地区常见的地形和浅水兵被联系外形。他们被 Albian-Cenomanian 系列的开的海洋的外形在中央突尼斯作为来源岩石承认了的 transgressive unconformably 覆盖。另外， reefal Aptian 外形被认为一座潜在的水库在中央突尼斯和它的岩石经常被联系到矿化作用和 Hydrocarbure 水库。
Aptian
Cite
Citations (0)
It’s the fi rst time, when the data on the stratigraphic distribution of calcareous nanoplankton of the Aptian deposits are published for the Crimean Mountains. The possibility of allocating two nannoplankton zones: Chiastozygus litterarius (lower Aptian) and Rhagodiscus angustus (middle-upper Aptian) is showed. Aptian and Albian boundary is set by the appearance of Prediscosphaera cretacea.
Aptian
Cite
Citations (0)
Sedimentological, stratigraphical, palaeontological, and geochemical evidence from outcrops of the Early Aptian (Cretaceous) succession in Mount Pagasarri (northern Spain) dated by ammonites is described to elucidate the origin of organic carbon‐rich sediments and carbonate platforms in the Early Aptian of the northern margin of the Tethyan Ocean. A 1,600‐m‐thick section spans the latest Barremian to the end of the Early Aptian and is divided into 3 units: a lower marine nearshore, a middle rudist‐coral shallow‐water carbonate platform, and a deeper‐water outer shelf. Deshayesites oglanlensis , D. forbesi , D. deshayesi and Dufrenoyia furcata ammonite zones are represented. Three organic carbon‐rich intervals are recognised. The oldest (top Barremian) is correlated with the Taxy Level of France/Germany. A second organic layer in the lower part of the Deshayesites deshayesi Zone sediments correlates with the Selli Event of Italy. A third organic‐carbon enriched layer in the D. furcata Zone sediments post‐dates the Aparein Level of the Aralar area in Spain. Carbon isotope curves reveal a brief negative excursion followed by a more prolonged positive trend during the Early Aptian interpreted as oceanic anoxic event 1a (OAE1a). Three carbonate platform growth phases are recognised in the Basque‐Cantabrian Basin with OAE1a being developed between carbonate platform Phases 1 and 2. The Peñascal Limestones (late Early Aptian) represent carbonate platform Phase 3 of the Basque‐Cantabrian Basin succeeded by ammonite‐bearing marls of the latest Early Aptian, reflecting platform demise and subsequent marine flooding. The Mount Pagasarri area is a key locality for study of the oceanic anoxic events in the Greenhouse Earth of the Early Aptian.
Aptian
Carbonate platform
Ammonite
Marl
Outcrop
Cite
Citations (15)
Aptian
Cite
Citations (1)