Haraldur Karlsson

735 total citations
25 papers, 611 citations indexed

About

Haraldur Karlsson is a scholar working on Geochemistry and Petrology, Paleontology and Geophysics. According to data from OpenAlex, Haraldur Karlsson has authored 25 papers receiving a total of 611 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Geochemistry and Petrology, 8 papers in Paleontology and 7 papers in Geophysics. Recurrent topics in Haraldur Karlsson's work include Paleontology and Stratigraphy of Fossils (8 papers), Geological and Geochemical Analysis (7 papers) and Groundwater and Isotope Geochemistry (6 papers). Haraldur Karlsson is often cited by papers focused on Paleontology and Stratigraphy of Fossils (8 papers), Geological and Geochemical Analysis (7 papers) and Groundwater and Isotope Geochemistry (6 papers). Haraldur Karlsson collaborates with scholars based in United States, Norway and Iceland. Haraldur Karlsson's co-authors include E. K. Gibson, Robert N. Clayton, R. A. Socki, T. K. Mayeda, Tore Prestvik, Olgeir Sigmarsson, Guðrún Larsen, Karl Grönvold, Steven A. Goldberg and James E. Barrick and has published in prestigious journals such as Nature, Science and Analytical Chemistry.

In The Last Decade

Haraldur Karlsson

25 papers receiving 572 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Haraldur Karlsson United States	11	223	175	150	139	122	25	611
C. J. Eastoe United States	14	98 0.4×	182 1.0×	263 1.8×	133 1.0×	112 0.9×	20	594
Pierre-Étienne Mathé France	16	178 0.8×	252 1.4×	170 1.1×	318 2.3×	66 0.5×	28	1.1k
Jim D. Gleason United States	14	284 1.3×	260 1.5×	225 1.5×	74 0.5×	120 1.0×	30	746
Ted J. Huston United States	12	354 1.6×	171 1.0×	272 1.8×	175 1.3×	139 1.1×	19	891
É. Lewin France	11	376 1.7×	203 1.2×	220 1.5×	58 0.4×	91 0.7×	26	815
Eugene C. Perry United States	16	311 1.4×	255 1.5×	284 1.9×	72 0.5×	117 1.0×	30	789
Randall S. Perry United States	14	168 0.8×	311 1.8×	241 1.6×	217 1.6×	104 0.9×	30	813
J. Borthwick United Kingdom	7	356 1.6×	110 0.6×	150 1.0×	54 0.4×	66 0.5×	9	568
L. J. Evans United States	13	415 1.9×	190 1.1×	131 0.9×	30 0.2×	119 1.0×	20	807
Nicholas J. Pester United States	16	282 1.3×	178 1.0×	169 1.1×	46 0.3×	48 0.4×	22	685

Countries citing papers authored by Haraldur Karlsson

Since Specialization

Citations

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

Fields of papers citing papers by Haraldur Karlsson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Haraldur Karlsson

This figure shows the co-authorship network connecting the top 25 collaborators of Haraldur Karlsson. A scholar is included among the top collaborators of Haraldur Karlsson 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 Haraldur Karlsson. Haraldur Karlsson 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

Barrick, James E., Gilbert Klapper, Mark A. Kleffner, & Haraldur Karlsson. (2011). Conodont Biostratigraphy and Stable Isotope Chemostratigraphy of the Lower Henryhouse Formation (Gorstian-early Ludfordian, Ludlow, Silurian), Southern Oklahoma, USA. 51. 8 indexed citations

Barrick, James E., et al.. (2010). The mid-Ludfordian Lau Event and Carbon Isotope Excursion (Ludlow, Silurian) in southern Laurentia - Preliminary Results. 27 indexed citations

Kleffner, Mark A., et al.. (2009). Stable isotope chemostratigraphy and conodont biostratigraphy across the Silurian-Devonian boundary in southwestern Laurentia.. 6 indexed citations

Barrick, James E., Mark A. Kleffner, & Haraldur Karlsson. (2009). Conodont faunas and stable isotopes across the Mulde Event (late Wenlock; Silurian) in southwestern Laurentia (south-central Oklahoma and subsurface West Texas).. 41–56. 9 indexed citations

Sigvaldason, Guðmundur E., et al.. (2002). The Askja- Sveinagja Connection: Implications for the Origin of Low O-18 Magmas in Iceland. AGUFM. 2002. 2 indexed citations

Johnson, Kenneth, Calvin G. Barnes, John Browning, & Haraldur Karlsson. (2002). Petrology of iron-rich magmatic segregations associated with strongly peraluminous trondhjemite in the Cornucopia stock, northeastern Oregon. Contributions to Mineralogy and Petrology. 142(5). 564–581. 9 indexed citations

Prestvik, Tore, Steven A. Goldberg, Haraldur Karlsson, & Karl Grönvold. (2001). Anomalous strontium and lead isotope signatures in the off-rift Öræfajökull central volcano in south-east Iceland. Earth and Planetary Science Letters. 190(3-4). 211–220. 57 indexed citations

Karlsson, Haraldur. (2001). Isotope Geochemistry of Zeolites. Reviews in Mineralogy and Geochemistry. 45(1). 163–205. 9 indexed citations

Nelson, Stephen T., Haraldur Karlsson, James B. Paces, et al.. (2001). Paleohydrologic record of spring deposits in and around Pleistocene pluvial Lake Tecopa, southeastern California. Geological Society of America Bulletin. 113(5). 659–659. 20 indexed citations

10.

Prestvik, Tore, et al.. (1999). Petrology of early Tertiary nephelinites off mid-Norway. Additional evidence for an enriched endmember of the ancestral Iceland plume. Lithos. 46(2). 317–330. 26 indexed citations

11.

Karlsson, Haraldur. (1993). Horizontal Systems Technology for Shallow Site Remediation. Journal of Petroleum Technology. 45(2). 160–165. 13 indexed citations

12.

Karlsson, Haraldur, Robert N. Clayton, T. K. Mayeda, A. J. T. Jull, & E. K. Gibson. (1993). Martian carbon dioxide: Clues from isotopes in SNC meteorites. NASA Technical Reports Server (NASA). 757. 4 indexed citations

13.

Socki, R. A., Haraldur Karlsson, & E. K. Gibson. (1992). Extraction technique for the determination of oxygen-18 in water using preevacuated glass vials. Analytical Chemistry. 64(7). 829–831. 133 indexed citations

14.

Karlsson, Haraldur, Robert N. Clayton, E. K. Gibson, & T. K. Mayeda. (1992). Water in SNC Meteorites: Evidence for a Martian Hydrosphere. Science. 255(5050). 1409–1411. 129 indexed citations

15.

Karlsson, Haraldur, A. J. T. Jull, R. A. Socki, & E. K. Gibson. (1991). Carbonates in Antarctic Ordinary Chondrites: Evidence for Terrestrial Origin. Lunar and Planetary Science Conference. 22. 689. 4 indexed citations

16.

Karlsson, Haraldur & Robert N. Clayton. (1991). Analcime phenocrysts in igneous rocks: Primary or secondary?. 76. 189–199. 37 indexed citations

17.

Karlsson, Haraldur, Robert N. Clayton, E. K. Gibson, T. K. Mayeda, & R. A. Socki. (1991). Extraterrestrial water of possible Martian origin in SNC meteorites: Constraints from oxygen isotopes. 26. 113. 2 indexed citations

18.

Karlsson, Haraldur, et al.. (1990). Stable isotopic compositions of carbonates in Antarctic ordinary chondrites: Indicators of terrestrial weathering?. Metic. 25. 375. 1 indexed citations

19.

Karlsson, Haraldur, Robert N. Clayton, & T. K. Mayeda. (1985). Analcime--a potential geothermometer. Geol. Soc. Am., Abstr. Programs; (United States). 17. 4 indexed citations

20.

Kristjánsson, Leó, Kjartan Thors, & Haraldur Karlsson. (1977). Confirmation of central volcanoes off the Icelandic coast. Nature. 268(5618). 325–326. 7 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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