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.
Some Precambrian banded iron-formations (BIFs) from around the world: Their age, geologic setting, mineralogy, metamorphism, geochemistry, and origins
This map shows the geographic impact of C. Klein'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 C. Klein with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites C. Klein more than expected).
This network shows the impact of papers produced by C. Klein. 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 C. Klein. The network helps show where C. Klein may publish in the future.
Co-authorship network of co-authors of C. Klein
This figure shows the co-authorship network connecting the top 25 collaborators of C. Klein.
A scholar is included among the top collaborators of C. Klein 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 C. Klein. C. Klein is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Fowler, Andrew, et al.. (2013). Reformulation and performance evaluation of the sulfate-water oxygen isotope geothermometer. 393–401.2 indexed citations
3.
Beard, Brian L., et al.. (2006). High-Precision Fe Isotope Measurements of the 3.7-3.8 Ga Isua Banded Iron Formation. AGUFM. 2006.1 indexed citations
Klein, C.. (1992). Time distribution, stratigraphy, and sedimentologic setting, and geochemistry of Precambrian iron-formation. Medical Entomology and Zoology.48 indexed citations
Klein, C., et al.. (1976). Mineralogy and petrology of some metamorphic Precambrian iron-formations in southwestern Montana. American Mineralogist. 61. 1117–1144.32 indexed citations
Klein, C., et al.. (1973). Glasses in Breccia 15086: Their Chemistry and Occurrence. Lunar and Planetary Science Conference. 4. 184.1 indexed citations
16.
Frondel, C., C. Klein, & Jun Ito. (1971). Mineralogical and Chemical Data on Apollo 12 Lunar Fines. Lunar and Planetary Science Conference Proceedings. 2. 719.14 indexed citations
17.
Frondel, C., et al.. (1971). Mineralogical, petrological, and chemical features of four Apollo 12 lunar microgabbros. Lunar and Planetary Science Conference Proceedings. 2. 265.18 indexed citations
18.
Frondel, C., et al.. (1970). Mineralogical and chemical studies of Apollo 11 lunar fines and selected rocks. Geochimica et Cosmochimica Acta Supplement. 1. 445.31 indexed citations
19.
Frondel, C. & C. Klein. (1966). Roedderite A new mineral from the Indarch meteorite.. American Mineralogist. 51(7). 949–955.38 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.