Terry L. Spell

3.5k total citations · 2 hit papers
55 papers, 2.8k citations indexed

About

Terry L. Spell is a scholar working on Geophysics, Atmospheric Science and Artificial Intelligence. According to data from OpenAlex, Terry L. Spell has authored 55 papers receiving a total of 2.8k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Geophysics, 20 papers in Atmospheric Science and 17 papers in Artificial Intelligence. Recurrent topics in Terry L. Spell's work include Geological and Geochemical Analysis (46 papers), earthquake and tectonic studies (26 papers) and Geology and Paleoclimatology Research (20 papers). Terry L. Spell is often cited by papers focused on Geological and Geochemical Analysis (46 papers), earthquake and tectonic studies (26 papers) and Geology and Paleoclimatology Research (20 papers). Terry L. Spell collaborates with scholars based in United States, Canada and Australia. Terry L. Spell's co-authors include Ian McDougall, Kathleen A. Zanetti, Peter W. Reiners, Stefan Nicolescu, Jeremy P. Richards, Tim D. Fletcher, A. J. Tulloch, G. A. Davis, Brian J. Darby and Yadong Zheng and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Geophysical Research Atmospheres and Geochimica et Cosmochimica Acta.

In The Last Decade

Terry L. Spell

53 papers receiving 2.7k 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.

Zircon (U-Th)/He thermochronometry: He diffusion and comparisons with 40Ar/39Ar dating

2004 605 citations Terry L. Spell, Kathleen A. Zanetti et al. profile →
High Sr/Y Magmas Reflect Arc Maturity, High Magmatic Water Content, and Porphyry Cu ± Mo ± Au Potential: Examples from the Tethyan Arcs of Central and Eastern Iran and Western Pakistan

2012 403 citations Jeremy P. Richards, Terry L. Spell et al. Economic Geology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Terry L. Spell United States	24	2.5k	976	665	193	170	55	2.8k
Barbara E. John United States	32	3.6k 1.4×	896 0.9×	548 0.8×	201 1.0×	217 1.3×	78	3.8k
R. R. Parrish United Kingdom	23	2.4k 1.0×	793 0.8×	344 0.5×	177 0.9×	221 1.3×	40	2.7k
Jo‐Anne Wartho Germany	26	2.3k 0.9×	652 0.7×	371 0.6×	331 1.7×	219 1.3×	70	2.7k
Derek J. Thorkelson Canada	28	3.0k 1.2×	1.1k 1.2×	489 0.7×	334 1.7×	289 1.7×	64	3.2k
D. J. Morgan United Kingdom	27	2.5k 1.0×	746 0.8×	526 0.8×	140 0.7×	105 0.6×	48	2.9k
Jingen Dai China	27	2.5k 1.0×	701 0.7×	435 0.7×	265 1.4×	294 1.7×	54	2.9k
T. J. Dempster United Kingdom	30	2.4k 1.0×	841 0.9×	518 0.8×	293 1.5×	145 0.9×	73	2.6k
James E. Wright United States	28	2.3k 0.9×	811 0.8×	429 0.6×	243 1.3×	258 1.5×	61	2.5k
B. B. Hanan United States	39	4.5k 1.8×	1.1k 1.2×	649 1.0×	198 1.0×	270 1.6×	87	4.8k
J. K. Hourigan United States	25	2.0k 0.8×	654 0.7×	784 1.2×	265 1.4×	353 2.1×	70	2.4k

Countries citing papers authored by Terry L. Spell

Since Specialization

Citations

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

Fields of papers citing papers by Terry L. Spell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Terry L. Spell. 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 Terry L. Spell. The network helps show where Terry L. Spell may publish in the future.

Co-authorship network of co-authors of Terry L. Spell

This figure shows the co-authorship network connecting the top 25 collaborators of Terry L. Spell. A scholar is included among the top collaborators of Terry L. Spell 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 Terry L. Spell. Terry L. Spell 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

Grantham, G.H., et al.. (2025). The geology, chemistry and age of the Straumsvola Alkaline Complex, western Dronning Maud Land, Antarctica. The role of liquid immiscibility. Polar Science. 46. 101305–101305.

Rasmussen, D. Tab, Anthony R. Friscia, Mercedes Gutiérrez, et al.. (2019). Primitive Old World monkey from the earliest Miocene of Kenya and the evolution of cercopithecoid bilophodonty. Proceedings of the National Academy of Sciences. 116(13). 6051–6056. 19 indexed citations

Richards, Jeremy P., et al.. (2018). Magmatic evolution and porphyry–epithermal mineralization in the Taftan volcanic complex, southeastern Iran. Ore Geology Reviews. 95. 258–279. 22 indexed citations

Richards, Jeremy P., Robert A. Creaser, Karlis Muehlenbachs, et al.. (2018). Origin of the high-grade Early Jurassic Brucejack epithermal Au-Ag deposits, Sulphurets Mining Camp, northwestern British Columbia. Ore Geology Reviews. 95. 480–517. 12 indexed citations

Gallagher, Shaun, et al.. (2017). Geology, geochemistry, and geochronology of the East Bay gold trend, Red Lake, Ontario, Canada. Mineralium Deposita. 53(1). 127–141. 5 indexed citations

Mortimer, N., Barry P. Kohn, Diane Seward, Terry L. Spell, & A. J. Tulloch. (2015). Reconnaissance thermochronology of southern Zealandia. Journal of the Geological Society. 173(2). 370–383. 20 indexed citations

Richards, Jeremy P., et al.. (2012). High Sr/Y Magmas Reflect Arc Maturity, High Magmatic Water Content, and Porphyry Cu ± Mo ± Au Potential: Examples from the Tethyan Arcs of Central and Eastern Iran and Western Pakistan. Economic Geology. 107(2). 295–332. 403 indexed citations breakdown →

Scott, James M., Alan F. Cooper, A. J. Tulloch, & Terry L. Spell. (2010). Crustal thickening of the Early Cretaceous paleo-Pacific Gondwana margin. Gondwana Research. 20(2-3). 380–394. 31 indexed citations

Jongens, Richard, et al.. (2009). Pember Diorite—an Early Jurassic intrusion in the Rakaia Terrane, Puketeraki Range, Canterbury, New Zealand. New Zealand Journal of Geology and Geophysics. 52(1). 37–42. 3 indexed citations

10.

Spell, Terry L., et al.. (2008). The Canovas Canyon Rhyolite, Jemez Volcanic Field, New Mexico: Early Eruptions From A Large Silicic Magma System, or Not?. AGU Fall Meeting Abstracts. 2008. 1 indexed citations

11.

Boztuğ, Durmuş, et al.. (2008). 40Ar/39Ar age and geochemistry of the post-collisional Miocene Yamadağ volcanics in the Arapkir area (Malatya Province), eastern Anatolia, Turkey. Journal of Asian Earth Sciences. 33(3-4). 229–251. 33 indexed citations

12.

Spell, Terry L., et al.. (2004). Establishment and Evolution of a new Silicic Magma System North of Yellowstone Caldera: Geochronology, Geochemistry and Petrographic Relationships of Extracaldera Basalts and Rhyolites in the Norris-Mammoth Corridor. AGUFM. 2004. 2 indexed citations

13.

Spell, Terry L. & Ian McDougall. (2003). Characterization and calibration of 40Ar/39Ar dating standards. Chemical Geology. 198(3-4). 189–211. 223 indexed citations

14.

Spell, Terry L., et al.. (2002). Re-examining the Petrogenesis of the Tschicoma Dacite, Jemez Volcanic Field, NM: Geochemical and Geochronologic Evidence for Distinct Pulses of Volcanism. AGUFM. 2002. 1 indexed citations

15.

Spell, Terry L., et al.. (2001). Systematics of xenocrystic contamination: preservation of discrete feldspar populations at McCullough Pass Caldera revealed by 40Ar/39Ar dating. Earth and Planetary Science Letters. 190(3-4). 153–165. 25 indexed citations

16.

Spell, Terry L., et al.. (2001). Effusive eruptions from a large silicic magma chamber: the Bearhead Rhyolite, Jemez volcanic field, NM. Journal of Volcanology and Geothermal Research. 107(4). 241–264. 37 indexed citations

17.

Smith, Eugene I., et al.. (2001). Imaging the Colorado Plateau - Basin and Range Transition Zone Using Basalt Geochemistry, Geochronology and Geographic Information Systems. 127–154. 1 indexed citations

18.

Spell, Terry L., Ian McDougall, & A. J. Tulloch. (2000). Thermochronologic constraints on the breakup of the Pacific Gondwana margin: The Paparoa metamorphic core complex, South Island, New Zealand. Tectonics. 19(3). 433–451. 70 indexed citations

19.

Sharpton, V. L., et al.. (1997). New Age Constraints on the Slate Islands Impact Structure, Lake Superior, Canada. LPI. 1287. 1 indexed citations

20.

Spell, Terry L. & T. Mark Harrison. (1993). ⁴⁰Ar/³⁹Ar Geochronology of Post‐Valles Caldera Rhyolites, Jemez Volcanic Field, New Mexico. Journal of Geophysical Research Atmospheres. 98(B5). 8031–8051. 45 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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