Project Info
The primary goal of this subproject is to provide continuous long-term (Quaternary-Miocene) information concerning the climatic/environmental history of the hyperarid core of the Atacama Desert that is currently lacking. To achieve this goal we want to core and investigate sediments from endorheic basins in the Coastal Cordillera, which cover the last >10 Ma. Most of these basins were formed by blocking of drainage by fault movement, and thus have recorded the tectonic history of the study area (C5).
They contain clastic sediments (presently dominated by silt) from sporadic riverine input, with accompanying authigenic minerals. Salars, which also occur in the study area, will not be targets in the first phase. The chronologies of the sediment records are expected to tie the inherently coarse chronology of biological (B1 to B4) and landscape evolution (C2 to C5) to climate records of higher temporal resolution. Fossil pollen and phytolith assemblages in the sediments shall provide information on past vegetation dynamics in the central Atacama and its climatic drivers (B1), and thus on potential migration paths of insects (B2). Sedimentation rates, grain-sizes and mineralogy of the cores will be used to reconstruct the chronology and the modes of weathering and erosion in the catchments (C2, C3).
Publications
Project A2 - Publications
Article(s)
Diederich, J., Wennrich, V., Bao, R., Büttner, C., Bolten, A., Brill, D., Buske, S., Campos, E., Fernández-Galego, E., Gödickmeier, P., Ninnemann, L., Reyers, M., Ritter, B., Ritterbach, L., Rolf, C., Scheidt, S., Dunai, T., Melles, M., 2020.
A 68ka precipitation record from the hyperarid core of the Atacama Desert in Northern Chile.
Global and Planetary Change. 184, 10305 - 10305.
Ritter, B., Wennrich, V., Medialdea, A., Brill, D., King, G., Schneiderwind, S., Niemann, K., Fernández-Galego, E., Diederich, J., Rolf, C., Bao, R., Melles, M., Dunai, T., 2019.
Climatic fluctuations in the hyperarid core of the Atacama Desert during the past 215 ka.
Nature Scientific Reports. 1 - 13.
Ritter, B., Binnie, S., Stuart, F., Wennrich, V., Dunai, T., 2018.
Evidence for multiple Plio-Pleistocene lake episodes in the hyperarid Atacama Desert.
Quaternary Geochronology. 44, 1 - 12. DOI: 10.1016/j.quageo.2017.11.002.
Ritter, B., Stuart, F., Binnie, S., Gerdes, A., Wennrich, V., Dunai, T., 2018.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
Nature Scientific Reports. 1 - 16.
Ritter, B., 2019.
Dissertation B. Ritter 2019: Landscape and climate evolution in arid to hyperarid climates with special focus on the Atacama Desert.
Universitäts- und Stadtbibliotheke Universität zu Köln. 1 - 161.
Event Paper(s)
Ritter, B., Dunai, T., Stuart, F., Wennrich, V., Melles, M., 2016.
Shoreline dating of the former Quillagua-Llamara Lake, N-Chile – Implications of global teleconnections to the hydrology of the Atacama Desert.
Proc. of EGU General Assembly 2016, April 17 - 22, 2016, Vienna, 1 - 1.
Ritter, B., Binnie, S., Stuart, F., Gerdes, A., Wennrich, V., Dunai, T., 2018.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
Proc. of EGU General Assembly 2018, April 08 - 13, 2018, Vienna, 1 - 1.
Presentations
Project A2 - Presentations
Selected type(s)
Talk(s)
Poster(s)
Keynote(s)
Other(s)
Data
Project A2 - Research Data
Blanco, B., Wennrich, V., Yogeshwar, P., 2019.
Transient Electromagnetic data of PAG and PARANAL claypan..
CRC1211 Database (CRC1211DB).
Diederich, J., 2020.
Composite data Huara clay pan.
CRC1211 Database (CRC1211DB).
Diederich, J., 2019.
Composite data PAG.
CRC1211 Database (CRC1211DB).
Diederich, J., 2019.
Huara_submission to GPC.
CRC1211 Database (CRC1211DB).
Diederich, J., 2020.
Core description of PAG cores.
CRC1211 Database (CRC1211DB).
Diederich, J., 2020.
Core logs of PAG drilling.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Supplementary Dataset Ritter et al. 2019.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Ritter et al. 2017 Quaternary Geochronology Supplementary.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Supplementary Dataset Ritter et al. 2018.
CRC1211 Database (CRC1211DB).
Ritter, B., 2019.
Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert.
CRC1211 Database (CRC1211DB).
