Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Axel Munnecke"'
Autor:
Alexander Nützel, Jan Ove Ebbestad, Barbara Seuss, Axel Munnecke, Royal H. Mapes, Alex G. Cook
Publikováno v:
Zitteliana, Vol 97, Iss , Pp 29-51 (2023)
The platycerate gastropods Orthonychia yutaroi Ebbestad, sp. nov. (Ordovician, Boda Limestone, Sweden), O. enorme (Silurian, Sweden, Gotland), O. parva (Pennsylvanian, Finis Shale Member, USA), and Orthonychia sp. (Mississippian, Imo Formation, USA)
Externí odkaz:
https://doaj.org/article/7970a5a27ff94a21a5fa192158a9588c
Autor:
Ruilin Hao, Liyin Pan, Nana Mu, Xi Li, Xiaodong Fu, Shaoyun Xiong, Siqi Liu, Jianfeng Zheng, Min She, Axel Munnecke
Publikováno v:
Minerals, Vol 14, Iss 9, p 908 (2024)
The age and dolomitization processes in the Paleo-oil reservoir zone, which is composed of massive dolostones found in the Qiangtang Basin (SW China), are still debated. In this research, the Long’eni-Geluguanna Area was selected. Macroscopic infor
Externí odkaz:
https://doaj.org/article/a24059ed92aa429db5cf999542bdf4d8
Autor:
Mingyang Wei, Zhidong Bao, Axel Munnecke, Wei Liu, G. William M. Harrison, Hua Zhang, Demin Zhang, Zongfeng Li, Xiting Xu, Kai Lu, Zheng Shen
Publikováno v:
Minerals, Vol 11, Iss 7, p 659 (2021)
Just as in deep-water sedimentary environments, productive source rocks can be developed in an evaporitic platform, where claystones are interbedded with evaporites and carbonates. However, the impact of the paleoenvironment on the organic matter enr
Externí odkaz:
https://doaj.org/article/4a07761bb37e41a4aa0b82aaf71a818b
Publikováno v:
Frontiers in Earth Science, Vol 6 (2018)
Although carbonate-precipitating cyanobacteria are ubiquitous in aquatic ecosystems today, the criteria used to identify them in the geological record are subjective and rarely testable. Differences in the mode of biomineralization between cyanobacte
Externí odkaz:
https://doaj.org/article/342275a6cebd4a87a650d0eae9595e78
Publikováno v:
Estonian Journal of Earth Sciences, Vol 64, Iss 1, Pp 24-30 (2015)
The Mulde Event (Homerian, Wenlock) of the Silurian is characterized by a positive δ13C isotope excursion, a stepwise extinction of the hemipelagic fauna and an increase in non-skeletal deposits thought to be microbial, proliferating in shallow mari
Externí odkaz:
https://doaj.org/article/c8c0a431906f46469b7aaf1a4cd37834
Publikováno v:
Estonian Journal of Earth Sciences, Vol 63, Iss 4, Pp 287-292 (2014)
A microbial origin has been proposed for matrix-supported, low-diversity buildups reported from different palaeocontinents during the onset of the Mulde positive carbon isotope excursion. We have investigated a small aphanitic buildup from the Lower
Externí odkaz:
https://doaj.org/article/2fe42cf05c044ed9ad625ed654f2d4d4
Publikováno v:
Estonian Journal of Earth Sciences, Vol 63, Iss 3, Pp 181-185 (2014)
A new cornulitid species, Conchicolites crispisulcans sp. nov., is described from the Wenlock of Gotland, Sweden. The undulating edge of C. crispisulcans sp. nov. peristomes is unique among the species of Conchicolites. This undulating peristome edge
Externí odkaz:
https://doaj.org/article/02a286fee0024efa951e1fc9e352fb37
Autor:
Anna Merkel, Axel Munnecke
Publikováno v:
Facies. 69
The Pliensbachian–Toarcian transition was characterised by a drastic turnover from a cool climate to a period of rapid global warming. While the warming associated with the Early Toarcian Oceanic Anoxic Event is rather well-studied, the cause, inte
Publikováno v:
Geobios. 70:75-85
The algal genus Vitinellopsis nov. gen. is well represented in the Silurian limestones of Gotland (Sweden). This new taxon is interpreted as a calcified codiacean alga (Chlorophyta, Bryopsidales). In the studied material, the calcareous wall of sparr
Autor:
Thomas Servais, Borja Cascales-Miñana, David A.T. Harper, Bertrand Lefebvre, Axel Munnecke, Wenhui Wang, Yuandong Zhang
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 623:111592