Zobrazeno 1 - 10
of 39
pro vyhledávání: '"CHRISTOPH HARTKOPF-FRÖDER"'
Autor:
Francesca Vallé, HENDRIK NOWAK, EVELYN KUSTATSCHER, SALLY ERKENS, GUIDO ROGHI, CORRADO MORELLI, KARL KRAINER, NEREO PRETO, CHRISTOPH HARTKOPF-FRÖDER
Publikováno v:
Rivista Italiana di Paleontologia e Stratigrafia, Vol 129, Iss 1 (2023)
During the Permian, climate experienced a change from icehouse to greenhouse conditions. Few multidisciplinary studies have investigated Kungurian (late Cisuralian) tropical terrestrial ecosystem and climate changes. Here, we apply an interdisciplina
Externí odkaz:
https://doaj.org/article/9105997b419a47328245c888c22fed32
Autor:
Manfred Rösch, Harald Biester, Arno Bogenrieder, Eileen Eckmeier, Otto Ehrmann, Renate Gerlach, Mathias Hall, Christoph Hartkopf-Fröder, Ludger Herrmann, Birgit Kury, Jutta Lechterbeck, Wolfram Schier, Erhard Schulz
Publikováno v:
Land, Vol 6, Iss 1, p 11 (2017)
Long-term slash-and-burn experiments, when compared with intensive tillage without manuring, resulted in a huge data set relating to potential crop yields, depending on soil quality, crop type, and agricultural measures. Cultivation without manuring
Externí odkaz:
https://doaj.org/article/b0908379e05744d6b9bdd8460a6e6ba4
Autor:
Jonas Greve, Benjamin Busch, Dennis Quandt, Mathias Knaak, Christoph Hartkopf-Fröder, Christoph Hilgers
Publikováno v:
Zeitschrift der Deutschen Gesellschaft für Geowissenschaften. 173:673-695
Publikováno v:
Palaeobiodiversity and Palaeoenvironments. 102:493-502
Publikováno v:
PalZ. 96:449-469
Publikováno v:
30th International Meeting on Organic Geochemistry (IMOG 2021).
Summary The potential of forming liquid hydrocarbons for Pennsylvanian bituminous coals from Germany was studied, combining a set of organic-petrological and organic-geochemical methods as well as pyrolysis experiments.
Publikováno v:
International Journal of Coal Geology. 198:29-47
The assessment of unconventional shale gas potential for the Mississippian Alum shales, the Kulm-Plattenkalk and the Lower Pennsylvanian Ziegelschiefer Formation in western Germany provides insight on how fluctuation in depositional environments has
Autor:
Brooks B. Ellwood, Carlton E. Brett, Walter Riegel, Eberhard Schindler, Rainer Brocke, Jonathan H. Tomkin, Christoph Hartkopf-Fröder
Publikováno v:
Palaeobiodiversity and Palaeoenvironments. 97:449-467
The recognition of subtle small-scale cycles in “monotonous” calcareous mudstone intervals requires a multi-disciplinary approach. In the classical Eifel area of Germany, a section of lower Givetian calcareous rocks is exposed in the well-known M
Autor:
Christoph Hartkopf-Fröder, Johannes Böcker, Ralf Littke, Tianyu Zheng, Felix Froidl, Harald Strauss, Joschka Röth, Alireza Baniasad
Publikováno v:
Marine and Petroleum Geology. 124:104819
This study provides new organic geochemical, organic petrological and isotope data on the Berriasian Wealden Shales, northwest Germany as well as new kinetic data on petroleum generation determined both for kerogen concentrates and whole rock samples
Autor:
Nicolaj Mahlstedt, Reinhard Fink, Ralf Littke, Assad Ghazwani, Christoph Hartkopf-Fröder, Victoria F. Sachse
Publikováno v:
Geological Magazine
During Middle Devonian time a thick succession of organic-rich, mainly lacustrine flagstones developed within the Orcadian Basin. These petroleum source rocks crop out in northern Scotland. Nineteen samples were studied using organic petrology, palyn