A.G. Requejo

2.0k citations

31 papers · 1.6k indexed · h-index 19

Analytical Chemistry top 1%
- Petroleum Processing and Analysis 10
Mechanics of Materials top 1%
- Hydrocarbon exploration and reservoir analysis 21
Geology top 2%
- Geological Studies and Exploration 4
Environmental Chemistry top 2%
- Methane Hydrates and Related Phenomena 6
Oceanography top 5%
- Marine and coastal ecosystems 3
Global and Planetary Change
- Atmospheric and Environmental Gas Dynamics 17
Ecology
- Isotope Analysis in Ecology 5
Artificial Intelligence
- Geochemistry and Geologic Mapping 3

Co-authors: J. N. Gearing Patrick J. Gearing Jim Allan Roger Sassen David T. Rudnick James G. Quinn John M. Brooks Paul D. Boehm
Cited by: Analytical Chemistry Mechanics of Materials Geology
Journals: Organic Geochemistry (8 papers)Nature (4 papers)Geochimica et Cosmochimica Acta (4 papers)
Partner nations: United States Netherlands Canada

In The Last Decade

A.G. Requejo

28 papers receiving 1.5k citations

Peers

Countries citing papers authored by A.G. Requejo

Since Specialization

Citations

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

Fields of papers citing papers by A.G. Requejo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A.G. Requejo. 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 A.G. Requejo. The network helps show where A.G. Requejo may publish in the future.

Co-authorship network

The 25 scholars most cited alongside A.G. Requejo, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with A.G. Requejo Line = papers co-authored together A.G. Requejo links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	AAPG Memoir 73, Chapter 4: Petroleum Geochemistry Applied to Petroleum System Investigation Abner Cardoso Rodrigues,A.G. Requejo	2000	2
2	Polynuclear aromatic hydrocarbons (PAH) as indicators of the source and maturity of marine crude oils Organic Geochemistry ·A.G. Requejo,Roger Sassen,Thomas J. McDonald,G.J. Denoux,Mahlon C. Kennicutt,John M. Brooks	1996	60
3	Geochemistry of oils from the northern Timan-Pechora Basin, Russia Organic Geochemistry ·A.G. Requejo,Roger Sassen,Mahlon C. Kennicutt,S. Vanhaeverbeke,Thomas J. McDonald,G.J. Denoux,Paul A. Comet,John M. Brooks	1995	23
4	Evidence for only minor contributions from bacteria to sedimentary organic carbon Nature ·Walter A. Hartgers,Jaap S. Sinninghe Damsté,A.G. Requejo,Jim Allan,John M. Hayes,J.W. de Leeuw	1994	84
5	A molecular and carbon isotopic study towards the origin and diagenetic fate of diaromatic carotenoids Organic Geochemistry ·Walter A. Hartgers,Jaap S. Sinninghe Damsté,A.G. Requejo,Jim Allan,John M. Hayes,宏和諏訪,Tian-Min Xie,廣繁松岡,J.W. de Leeuw	1994	149
6	Sediment contaminants in Casco Bay, Maine: inventories, sources, and potential for biological impact Environmental Science & Technology ·M.C. Kennicutt,Terry L. Wade,B.J. Presley,A.G. Requejo,John M. Brooks,G.J. Denoux	1994	165
7	Maturation of petroleum source rocks—II. Quantitative changes in extractable hydrocarbon content and composition associated with hydrocarbon generation Organic Geochemistry ·A.G. Requejo	1994	69
8	Geochemical characterization of lithofacies and organic facies in Cretaceous organic-rich rocks from Trinidad, East Venezuela Basin Organic Geochemistry ·A.G. Requejo,T. L.,Lei Yang,Roger Sassen	1994	31
9	Organic geochemistry of sediments from chemosynthetic communities, Gulf of Mexico slope Geo-Marine Letters ·Roger Sassen,Ian R. MacDonald,A.G. Requejo,Norman L. Guinasso,Mahlon C. Kennicutt,Stephen T. Sweet,John M. Brooks	1994	84
10	Maturation of petroleum source rocks. 1. Changes in kerogen structure and composition associated with hydrocarbon generation Energy & Fuels ·A.G. Requejo,D. J. SOARES,H. Freund,H. Thomann,M. T. Melchior,恵子生田,María Bernardo,Hee Choul Ohrr,Chang Samuel Hsu	1992	48
11	Applications of quantitative biomarker analysis in petroleum geochemistry Preprints - American Chemical Society. Division of Petroleum Chemistry ·A.G. Requejo	1989	2
12	An unusual hopane biodegradation sequence in tar sands from the Pt Arena (Monterey) Formation Nature ·A.G. Requejo,Henry I. Halpern	1989	51
13	Overview of the recent sediment hydrocarbon geochemistry of Atlantic and Gulf Coast outer continental shelf environments Estuarine Coastal and Shelf Science ·Paul D. Boehm,A.G. Requejo	1986	52
14	Lignin geochemistry of sediments from the Narragansett Bay Estuary Geochimica et Cosmochimica Acta ·A.G. Requejo,John S. Brown,Paul D. Boehm	1986	27
15	COMPARATIVE FATE OF CHEMICALLY DISPERSED AND UNTREATED OIL IN THE ARCTIC: BAFFIN ISLAND OIL SPILL STUDIES 1980–1983 International Oil Spill Conference Proceedings ·Paul D. Boehm,William G. Steinhauer,A.G. Requejo,Zhiyuan Ma,Gabrijel Ondrasek,John H. Brown	1985	3
16	Isotopic variability of organic carbon in a phytoplankton-based, temperate estuary Geochimica et Cosmochimica Acta ·J. N. Gearing,Patrick J. Gearing,David T. Rudnick,A.G. Requejo,Henry Biermann	1984	281
17	C25 and C30 biogenic alkenes in a sediment core from the upper anoxic basin of the Pettaquamscutt River (Rhode Island, U.S.A.) Organic Geochemistry ·A.G. Requejo,James G. Quinn,J. N. Gearing,Patrick J. Gearing	1984	31
18	Geochemistry of C25 and C30 biogenic alkenes in sediments of the narragansett bay estuary Geochimica et Cosmochimica Acta ·A.G. Requejo,James G. Quinn	1983	65
19	Observation of a Subsurface Oil-Rich Layer in the Open Ocean Science ·George R. Harvey,A.G. Requejo,Philip A. McGillivary,Judith F. Kofroth	1979	10
20	Polychlorinated biphenyls and chlorinated pesticides in soils of the Everglades National Park and adjacent agricultural areas Environmental Science & Technology ·A.G. Requejo,Richard H. West,Patrick G. Hatcher,Philip A. McGillivary	1979	8

About A.G. Requejo

A.G. Requejo is a scholar working on Analytical Chemistry, Global and Planetary Change, Mechanics of Materials, Geology and Environmental Chemistry, having authored 31 papers that have together received 1.6k indexed citations. Recurring topics across this work include Hydrocarbon exploration and reservoir analysis (21 papers), Atmospheric and Environmental Gas Dynamics (17 papers), Petroleum Processing and Analysis (10 papers), Methane Hydrates and Related Phenomena (6 papers), Isotope Analysis in Ecology (5 papers), Geological Studies and Exploration (4 papers), Geochemistry and Geologic Mapping (3 papers) and Marine and coastal ecosystems (3 papers). The work is most often cited by research in Analytical Chemistry (366 citations), Mechanics of Materials (843 citations), Geology (184 citations), Environmental Chemistry (295 citations) and Oceanography (305 citations). A.G. Requejo has collaborated with scholars based in United States, Netherlands and Canada. Frequent co-authors include J. N. Gearing, Patrick J. Gearing, Jim Allan, Roger Sassen, David T. Rudnick, James G. Quinn, John M. Brooks, Paul D. Boehm, G.J. Denoux and J.W. de Leeuw. Their work appears in journals such as Organic Geochemistry, Nature, Geochimica et Cosmochimica Acta, Estuarine Coastal and Shelf Science and Environmental Science & Technology.

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