The Anisian depositional history in the Western Tethys realm provides the possibility to study the stepwise opening of the Neo-Tethys, and is well preserved in the sedimentary record of the Northern Calcareous Alps. Whereas the depositional characteristic in the Early (to early Middle) Anisian is characterized by shallow-water carbonates, formed in a semi-restricted environment, the situation changed in the Middle Anisian. A rapid increase of subsidence resulted in an abrupt deepening event with deposition of deeper-water limestones, in some cases even with chert nodules, sometimes with resedimented shallow-water debris intercalated in radiolaria-filament wackestones, or with clayey or marly intercalations. This abrupt deepening, termed the Annaberg Event, is followed by a shallow-water carbonate evolution. The deeper-water limestones can be dated by conodonts and shallow-water organisms like calcareous algae or foraminifera from the resedimented intercalations as Late Bithynian to Early Pelsonian. In contrast to the Early Anisian microbial carbonates, formed under semi-restricted conditions, the Middle Anisian (Pelsonian) shallow-water carbonates were formed under fully marine influence and a diverse fauna and flora was, therefore, able to counterbalance the rapid subsidence by increasing carbonate production. During Middle Anisian times, the newly tectonically created accommodation space became rapidly filled by shallow-water carbonates. At the end of the Middle Anisian (Late Pelsonian), the final break-up of the Neo-Tethys led to a rapid decrease of carbonate production and widespread deposition of deep-marine and condensed limestones. This drowning event (Reifling Event) was accompanied by the formation of a horst-and-graben morphology, dated by conodonts and ammonoids as late Middle Anisian from overlying condensed limestones. In contrast to the well-known drowning event in the late Middle Anisian, precursor events to the final oceanic break-up of the Neo-Tethys have not yet been described, but play an important role in the reconstruction of the opening history of the Neo-Tethys. This knowledge gap is filled by the analysis of exactly datable sedimentary successions in the central Northern Calcareous Alps.

西特提斯地区的Anisian沉积历史为研究新特提斯的逐步开放提供了可能性，并且在北部钙质阿尔卑斯山的沉积记录中得到了很好的保存。早期（到中早期）阿尼西时期的沉积特征是在半限制性环境中形成的浅水碳酸盐，而中阿尼西时期的情况则有所变化。沉降的迅速增加导致了深水石灰石沉积的突然加深事件，在某些情况下甚至出现了石结节，有时还沉积了浅水碎屑并沉积在放射丝状的瓦克石中，或者出现了粘土质或马里岩层。这种突然的加深现象被称为“安纳贝格事件”，随后是浅水碳酸盐岩的演化。较深水的石灰岩可能是牙形石和浅水生物（如钙质藻类或有孔虫科）的沉积物，这些沉积物是经过重新沉积的层层沉积的，例如比特西尼晚期至佩尔森早期。与在半限制条件下形成的早期Anisian微生物碳酸盐相反，在完全受海洋影响的情况下形成了中Anisian（Pelsonian）浅水碳酸盐，因此，多样化的动植物能够通过增加增加来抵消快速沉降。碳酸盐生产。在亚尼西亚中期，新构造的住宿空间迅速被浅水碳酸盐充满。在中阿尼阶（晚佩尔森阶）末期，新特提斯山脉的最终破裂导致碳酸盐产量迅速下降，深海和浓缩石灰石大量沉积。溺水事件（Reifling事件）伴随着霍斯特-格拉本形态的形成，其牙形石和铵盐的历史可追溯到上阿尼期晚期，是上覆的浓缩石灰岩形成的。与中阿尼西亚晚期著名的溺水事件相反，尚未描述新特提斯群岛最终海洋破裂的前兆事件，但在重新构造新底特律的开放历史方面起着重要作用-特提斯 通过对北部钙质阿尔卑斯山中部完全可数据化的沉积演替的分析来填补这一知识空白。尚未描述新特提斯最终海洋破裂的前兆事件，但在新特提斯的开放历史重建中起着重要作用。通过对北部钙质阿尔卑斯山中部完全可数据的沉积演替的分析填补了这一知识空白。尚未描述新特提斯号最终海洋破裂的前兆事件，但在重新构造新特提斯号的开放历史方面起着重要作用。通过对北部钙质阿尔卑斯山中部完全可数据化的沉积演替的分析来填补这一知识空白。