Andrew Knudsen

1.6k total citations · 2 hit papers
18 papers, 1.3k citations indexed

About

Andrew Knudsen is a scholar working on Paleontology, Inorganic Chemistry and Geochemistry and Petrology. According to data from OpenAlex, Andrew Knudsen has authored 18 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Paleontology, 8 papers in Inorganic Chemistry and 7 papers in Geochemistry and Petrology. Recurrent topics in Andrew Knudsen's work include Paleontology and Stratigraphy of Fossils (8 papers), Radioactive element chemistry and processing (8 papers) and Geochemistry and Elemental Analysis (6 papers). Andrew Knudsen is often cited by papers focused on Paleontology and Stratigraphy of Fossils (8 papers), Radioactive element chemistry and processing (8 papers) and Geochemistry and Elemental Analysis (6 papers). Andrew Knudsen collaborates with scholars based in United States, Canada and France. Andrew Knudsen's co-authors include Noah J. Planavsky, Olivier Rouxel, Andrey Bekker, Axel Hofmann, Timothy W. Lyons, Balz S. Kamber, Xiangli Wang, Stefan V. Lalonde, Frantz Ossa Ossa and Kurt O. Konhauser and has published in prestigious journals such as The Journal of Experimental Medicine, Geochimica et Cosmochimica Acta and Earth and Planetary Science Letters.

In The Last Decade

Andrew Knudsen

16 papers receiving 1.2k 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.

Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event

2014 437 citations Noah J. Planavsky, Dan Asael et al. Nature Geoscience profile →
Rare Earth Element and yttrium compositions of Archean and Paleoproterozoic Fe formations revisited: New perspectives on the significance and mechanisms of deposition

2010 424 citations Noah J. Planavsky, Andrey Bekker et al. Geochimica et Cosmochimica Acta profile →

Peers

Andrew Knudsen

PALEO

GEOPH

Albertus J.B. Smith South Africa

Jessica Garvin United States

Camille A. Partin Canada

Frantz Ossa Ossa South Africa

Jena E. Johnson United States

J.N. Pattan India

G. N. Baturin Russia

Ernesto Peçoits Canada

Amy E. Kelly United States

Devon B. Cole United States

Albertus J.B. Smith South Africa

Andrew Knudsen

682 ×0.9

617 ×0.8

PALEO

456 ×0.9

GEOPH

155 ×0.7

127 ×0.7

Citations per year, relative to Andrew Knudsen Andrew Knudsen (= 1×) peers Albertus J.B. Smith

Countries citing papers authored by Andrew Knudsen

Since Specialization

Citations

This map shows the geographic impact of Andrew Knudsen'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 Andrew Knudsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Andrew Knudsen more than expected).

Fields of papers citing papers by Andrew Knudsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Andrew Knudsen. 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 Andrew Knudsen. The network helps show where Andrew Knudsen may publish in the future.

Co-authorship network of co-authors of Andrew Knudsen

This figure shows the co-authorship network connecting the top 25 collaborators of Andrew Knudsen. A scholar is included among the top collaborators of Andrew Knudsen 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 Andrew Knudsen. Andrew Knudsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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18 of 18 papers shown

Li, Fangbing, Donald E. Penman, Noah J. Planavsky, et al.. (2021). Reverse weathering may amplify post-Snowball atmospheric carbon dioxide levels. Precambrian Research. 364. 106279–106279. 18 indexed citations

Cole, Devon B., Noah J. Planavsky, Philipp Böning, et al.. (2020). Uranium Isotope Fractionation in Non‐sulfidic Anoxic Settings and the Global Uranium Isotope Mass Balance. Global Biogeochemical Cycles. 34(8). 59 indexed citations

Wang, Xiangli, Noah J. Planavsky, Axel Hofmann, et al.. (2018). A Mesoarchean shift in uranium isotope systematics. Geochimica et Cosmochimica Acta. 238. 438–452. 55 indexed citations

Clark, Jeffrey L. & Andrew Knudsen. (2016). PUSHING THE ENVELOPE: INCORPORATING FIELD EXPERIENCES ACROSS MULTIPLE LABS, COURSES, AND YEARS. Abstracts with programs - Geological Society of America.

Planavsky, Noah J., et al.. (2015). Uranium Isotope Ratios in Modern and Precambrian Soils. AGU Fall Meeting Abstracts. 2015. 2 indexed citations

Planavsky, Noah J., Dan Asael, Axel Hofmann, et al.. (2014). Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event. Nature Geoscience. 7(4). 283–286. 437 indexed citations breakdown →

Knudsen, Andrew, et al.. (2013). Extent, Characterization, and Sources of Soil Lead Contamination in Small-Urban Residential Neighborhoods. Journal of Environmental Quality. 42(5). 1498–1506. 38 indexed citations

Lane, Chad S., et al.. (2012). Late-Holocene paleoenvironmental history of bioluminescent Laguna Grande, Puerto Rico. Palaeogeography Palaeoclimatology Palaeoecology. 369. 99–113. 16 indexed citations

Planavsky, Noah J., Andrey Bekker, Olivier Rouxel, et al.. (2010). Rare Earth Element and yttrium compositions of Archean and Paleoproterozoic Fe formations revisited: New perspectives on the significance and mechanisms of deposition. Geochimica et Cosmochimica Acta. 74(22). 6387–6405. 424 indexed citations breakdown →

10.

Planavsky, Noah J., et al.. (2009). Iron-oxidizing microbial ecosystems thrived in late Paleoproterozoic redox-stratified oceans. Earth and Planetary Science Letters. 286(1-2). 230–242. 153 indexed citations

11.

Strawn, Daniel G., et al.. (2006). Geochemistry of lead contaminated wetland soils amended with phosphorus. Environmental Geology. 52(1). 109–122. 16 indexed citations

12.

Knudsen, Andrew, et al.. (2004). The effects of weathering on the mineralogy of the Phosphoria Formation, Southeast Idaho.. The Journal of Experimental Medicine. 17(5). 169–187. 1 indexed citations

13.

Knudsen, Andrew & M. E. Gunter. (2002). Sedimentary Phosphorites--An Example: Phosphoria Formation, Southeastern Idaho, U.S.A.. Reviews in Mineralogy and Geochemistry. 48(1). 363–389. 45 indexed citations

14.

Knudsen, Andrew, et al.. (2002). Mineralogical characterization of weathered and less weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections E and F, Rasmussen Ridge, and measured sections G and H, Sage Creek area of the Webster Range, Caribou County, Idaho. Antarctica A Keystone in a Changing World. 2 indexed citations

15.

Herring, Jackson R., Richard I. Grauch, D. F. Siems, et al.. (2001). Chemical composition of strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation: Channel-composited and individual rock samples of measured section J and their relationship of measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho. Antarctica A Keystone in a Changing World. 2 indexed citations

16.

Knudsen, Andrew, et al.. (2001). Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections C and D, Dry Valley, Caribou County, Idaho. Antarctica A Keystone in a Changing World. 1 indexed citations

17.

Wilson, Stephen A., Andrew Knudsen, R.G. Tysdal, et al.. (2000). Chemical composition of weathered and less weathered strata of the Meade Peak Phosphatic Shale Member of the Permian Phosphoria Formation; B, Measured sections C and D, Dry Valley, Caribou County, Idaho. Antarctica A Keystone in a Changing World. 3 indexed citations

18.

Knudsen, Andrew, Mickey E. Gunter, & Jackson R. Herring. (2000). Preliminary mineralogical characterization of weathered and less-weathered strata of the Meade Peak phosphatic shale member of the Permian Phosphoria Formation: Measured sections A and B, central part of Rasmussen Ridge, Caribou County, Idaho. Antarctica A Keystone in a Changing World. 2 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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