Palaeoceanography of the Early Cretaceous of the high latitudes (NE Greenland).

高纬度地区早白垩世的古海洋学（格陵兰岛东北部）。

• 批准号: 178623641
• 负责人: Professor Dr. Jörg Mutterlose
• 金额: --
• 依托单位: Institut für Geologie, Mineralogie und Geophysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/178623641?language=en
• 关键词: Palaeoceanography; Early; Cretaceous; latitudes; NE

The view of a generally warm-equable Early Cretaceous greenhouse world is questioned by a rather differentiated climatic scenario with cold snaps, possibly even causing polar ice caps. These contradictory interpretations are partly caused by a lack of data from the high latitudes which should be more sensitive to climatic changes. We therefore propose a multi-proxy approach based in the high latitudes (NE Greenland) to better understand the biotic, palaeoclimatic and palaeoceanographic evolution of the Early Cretaceous (Ryazanian – Barremian). Based on a biostratigraphic zonation (ammonites) we intend to a) establish a detailed multistratigraphic scheme for the Boreal-Arctic based on calcareous nannofossils, ammonites and strontium isotopy, which can be tied into the Tethyan succession, b) reconstruct changes of surface water conditions by evaluating calcareous nannofossil assemblages ecologically, c) use microfloras (calcareous nannofossils) and macrofaunas (ammonites, belemnites) to test the hypothesis of a proto-Golf stream, d) interpret the Ryazanian – Barremian interval of NE Greenland with respect to the enigma of high latitudinal carbonates.

早白垩世温室世界总体上温暖均衡的观点受到了相当不同的气候情景的质疑，这种气候情景伴随着寒流，甚至可能造成极地冰盖。这些相互矛盾的解释在一定程度上是由于缺乏来自高纬度地区的数据，而高纬度地区应该对气候变化更敏感。因此，我们提出了一种基于高纬度(东北格陵兰岛)的多代理方法，以更好地了解早白垩世(Ryazdian-Barremian)的生物、古气候和古海洋演化。在生物地层分带(菊石)的基础上，我们打算a)根据钙质纳米化石、菊石和锶同位素建立一个详细的北冰洋-北极多地层方案，它们可以与特提斯序列联系在一起；b)通过评估钙质纳米化石组合来重建地表水条件的变化；c)利用微型植物群(钙质纳米化石)和大型动物群(菊石、贝姆尼特)来检验原始高尔夫溪流的假说；d)解释格陵兰东北部的Ryazian-Barremian区间与高纬度碳酸盐的恩玛。

项目成果

Palaeoceanography of Lower Cretaceous (Barremian–Lower Aptian) black shales from northwest Germany evidenced by calcareous nannofossils and geochemistry

• DOI: 10.1016/j.cretres.2013.01.001
• 发表时间: 2013-05
• 期刊: Cretaceous Research
• 影响因子: 2.1
• 作者: Sebastian Pauly;J. Mutterlose;D. Wray

Early Cretaceous palaeoceanography of the Greenland–Norwegian Seaway evidenced by calcareous nannofossils

• DOI: 10.1016/j.marmicro.2012.04.004
• 发表时间: 2012-06
• 期刊: Marine Micropaleontology
• 影响因子: 1.9
• 作者: Sebastian Pauly;J. Mutterlose;P. Alsen

Lower Cretaceous (upper Ryazanian–Hauterivian) chronostratigraphy of high latitudes (North-East Greenland)

高纬度地区下白垩纪（上梁赞阶âHauterivian）年代地层（格陵兰岛东北部）

• DOI: 10.1016/j.cretres.2011.11.011
• 发表时间: 2012
• 期刊: Cretaceous Research
• 影响因子: 2.1
• 作者: Mutterlose

Integrated stratigraphy of Lower Cretaceous sediments (Ryazanian–Hauterivian) from North-East Greenland

格陵兰岛东北部下白垩统沉积物（RyazanianâHauterivian）的综合地层学

• DOI: 10.1016/j.palaeo.2015.07.014
• 发表时间: 2015
• 期刊: Palaeogeography, Palaeoclimatology, Palaeoecology
• 作者: Möller;Mutterlose;Alsen P.
• 通讯作者: Alsen P.