Christa Placzek

1.7k total citations · 1 hit paper
27 papers, 1.1k citations indexed

About

Christa Placzek is a scholar working on Atmospheric Science, Paleontology and Anthropology. According to data from OpenAlex, Christa Placzek has authored 27 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Atmospheric Science, 9 papers in Paleontology and 9 papers in Anthropology. Recurrent topics in Christa Placzek's work include Geology and Paleoclimatology Research (20 papers), Pleistocene-Era Hominins and Archaeology (9 papers) and Geological and Geochemical Analysis (8 papers). Christa Placzek is often cited by papers focused on Geology and Paleoclimatology Research (20 papers), Pleistocene-Era Hominins and Archaeology (9 papers) and Geological and Geochemical Analysis (8 papers). Christa Placzek collaborates with scholars based in United States, Australia and Israel. Christa Placzek's co-authors include Jay Quade, P. Jonathan Patchett, Ari Matmon, Julio L. Betancourt, Darryl E. Granger, Hema Achyuthan, L. J. Roe, Paul H.G.M. Dirks, Eric M. Roberts and Jason A. Rech and has published in prestigious journals such as PLoS ONE, Earth and Planetary Science Letters and Geology.

In The Last Decade

Christa Placzek

27 papers receiving 1.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The age of Homo naledi and associated sediments in the Rising Star Cave, South Africa

2017 193 citations Paul H.G.M. Dirks, Eric M. Roberts et al. eLife profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Christa Placzek United States	17	705	384	366	272	201	27	1.1k
Jean‐Jacques Delannoy France	20	600 0.9×	515 1.3×	442 1.2×	362 1.3×	168 0.8×	118	1.4k
Stefan Kröpelin Germany	13	645 0.9×	313 0.8×	312 0.9×	271 1.0×	130 0.6×	17	1.1k
Sheila Mishra India	18	660 0.9×	447 1.2×	411 1.1×	338 1.2×	218 1.1×	26	1.1k
Martin Williams Australia	13	561 0.8×	277 0.7×	257 0.7×	264 1.0×	177 0.9×	21	860
C. W. Heil United States	16	844 1.2×	343 0.9×	304 0.8×	331 1.2×	273 1.4×	25	1.2k
René W. Barendregt Canada	19	1.1k 1.6×	391 1.0×	458 1.3×	305 1.1×	156 0.8×	71	1.7k
William D. McCoy United States	20	1.2k 1.7×	413 1.1×	229 0.6×	296 1.1×	331 1.6×	39	1.4k
Neri Ciaranfi Italy	23	1.0k 1.5×	282 0.7×	359 1.0×	402 1.5×	354 1.8×	37	1.5k
Eric A. Oches United States	24	1.6k 2.3×	637 1.7×	349 1.0×	398 1.5×	184 0.9×	39	2.0k
Françoise Chalié France	20	946 1.3×	336 0.9×	397 1.1×	268 1.0×	305 1.5×	33	1.4k

Countries citing papers authored by Christa Placzek

Since Specialization

Citations

This map shows the geographic impact of Christa Placzek's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Christa Placzek with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Christa Placzek more than expected).

Fields of papers citing papers by Christa Placzek

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christa Placzek. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Christa Placzek. The network helps show where Christa Placzek may publish in the future.

Co-authorship network of co-authors of Christa Placzek

This figure shows the co-authorship network connecting the top 25 collaborators of Christa Placzek. A scholar is included among the top collaborators of Christa Placzek based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Christa Placzek. Christa Placzek is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Roberts, Eric M., Patrick M. O’Connor, Julia A. Clarke, et al.. (2022). New age constraints support a K/Pg boundary interval on Vega Island, Antarctica: Implications for latest Cretaceous vertebrates and paleoenvironments. Geological Society of America Bulletin. 135(3-4). 867–885. 6 indexed citations

Dirks, Paul H.G.M., Eric M. Roberts, Jan D. Kramers, et al.. (2021). Providing context to the Homo naledi fossils: Constraints from flowstones on the age of sediment deposits in Rising Star Cave, South Africa. Chemical Geology. 567. 120108–120108. 18 indexed citations

Placzek, Christa, et al.. (2019). Coupled influence of precipitation and vegetation on millennial-scale erosion rates derived from 10Be. PLoS ONE. 14(1). e0211325–e0211325. 29 indexed citations

Dirks, Paul H.G.M., Eric M. Roberts, Hannah L. Hilbert‐Wolf, et al.. (2017). The age of Homo naledi and associated sediments in the Rising Star Cave, South Africa. eLife. 6. 193 indexed citations breakdown →

Placzek, Christa, et al.. (2017). Dirty goethite-a geochemical characterisation of some western Robe River channel iron deposits. ResearchOnline at James Cook University (James Cook University). 1 indexed citations

Dirks, Paul H.G.M., Christa Placzek, David Fink, Anthony Dosseto, & Eric M. Roberts. (2016). Using 10Be cosmogenic isotopes to estimate erosion rates and landscape changes during the Plio-Pleistocene in the Cradle of Humankind, South Africa. Journal of Human Evolution. 96. 19–34. 21 indexed citations

Placzek, Christa, et al.. (2016). Uranium isotope composition of waters from South Texas uranium ore deposits. Chemical Geology. 437. 44–55. 17 indexed citations

Chang, Zhaoshan, et al.. (2014). Strontium and stable C and O isotopic composition of carbonates in the Ernest Henry deposit, Queensland, Australia: implications for genesis and exploration. ResearchOnline at James Cook University (James Cook University). 1 indexed citations

Matmon, Ari, Jay Quade, Christa Placzek, et al.. (2014). Seismic origin of the Atacama Desert boulder fields. Geomorphology. 231. 28–39. 16 indexed citations

10.

Placzek, Christa, Jay Quade, & P. Jonathan Patchett. (2013). A 130ka reconstruction of rainfall on the Bolivian Altiplano. Earth and Planetary Science Letters. 363. 97–108. 93 indexed citations

11.

Matmon, Ari, et al.. (2013). Cosmogenic nuclides in buried sediments from the hyperarid Atacama Desert, Chile. Quaternary Geochronology. 19. 117–126. 9 indexed citations

12.

Placzek, Christa, Jay Quade, & P. Jonathan Patchett. (2010). Isotopic tracers of paleohydrologic change in large lakes of the Bolivian Altiplano. Quaternary Research. 75(1). 231–244. 46 indexed citations

13.

Placzek, Christa, Ari Matmon, Darryl E. Granger, Jay Quade, & Samuel Niedermann. (2010). Evidence for active landscape evolution in the hyperarid Atacama from multiple terrestrial cosmogenic nuclides. Earth and Planetary Science Letters. 295(1-2). 12–20. 75 indexed citations

14.

Placzek, Christa, Jay Quade, Julio L. Betancourt, et al.. (2009). CLIMATE IN THE DRY CENTRAL ANDES OVER GEOLOGIC, MILLENNIAL, AND INTERANNUAL TIMESCALES¹. Annals of the Missouri Botanical Garden. 96(3). 386–397. 104 indexed citations

15.

Placzek, Christa, Samuel Niedermann, Darryl E. Granger, Ari Matmon, & J. Quade. (2008). Cosmogenic 21Ne, 10Be and 26Al in Boulders from the Central Atacama Desert, Northern Chile. AGUFM. 2008. 1 indexed citations

16.

Placzek, Christa, Darryl E. Granger, & M. W. Caffee. (2007). Radiogenic Al-26 chronometry of evaporites. Purdue e-Pubs (Purdue University System). 1 indexed citations

17.

Achyuthan, Hema, Jay Quade, L. J. Roe, & Christa Placzek. (2007). Stable isotopic composition of pedogenic carbonates from the eastern margin of the Thar Desert, Rajasthan, India. Quaternary International. 162-163. 50–60. 70 indexed citations

18.

Placzek, Christa, et al.. (2006). Strategies for successful U‐Th dating of paleolake carbonates: An example from the Bolivian Altiplano. Geochemistry Geophysics Geosystems. 7(5). 20 indexed citations

19.

Placzek, Christa, Jay Quade, & P. Jonathan Patchett. (2006). Geochronology and stratigraphy of late Pleistocene lake cycles on the southern Bolivian Altiplano: Implications for causes of tropical climate change. Geological Society of America Bulletin. 118(5-6). 515–532. 253 indexed citations

20.

Placzek, Christa, Jay Quade, & Julio L. Betancourt. (2001). Holocene Lake-Level Fluctuations of Lake Aricota, Southern Peru. Quaternary Research. 56(2). 181–190. 37 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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