M. J. Orren

652 total citations
22 papers, 515 citations indexed

About

M. J. Orren is a scholar working on Global and Planetary Change, Pollution and Oceanography. According to data from OpenAlex, M. J. Orren has authored 22 papers receiving a total of 515 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Global and Planetary Change, 5 papers in Pollution and 5 papers in Oceanography. Recurrent topics in M. J. Orren's work include Heavy metals in environment (5 papers), Analytical chemistry methods development (3 papers) and Marine Biology and Ecology Research (3 papers). M. J. Orren is often cited by papers focused on Heavy metals in environment (5 papers), Analytical chemistry methods development (3 papers) and Marine Biology and Ecology Research (3 papers). M. J. Orren collaborates with scholars based in South Africa, Ireland and Belgium. M. J. Orren's co-authors include L. V. Shannon, R.D. Cherry, Pedro M. S. Monteiro, H. H. Kock, Ralf Ebinghaus, S. G. Jennings, A. J. Erlank, J. P. Willis, J. J. Gurney and T.S. McCarthy and has published in prestigious journals such as Nature, Geochimica et Cosmochimica Acta and Atmospheric Environment.

In The Last Decade

M. J. Orren

21 papers receiving 451 citations

Peers

Countries citing papers authored by M. J. Orren

Since Specialization

Citations

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

Fields of papers citing papers by M. J. Orren

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by M. J. Orren. 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 M. J. Orren. The network helps show where M. J. Orren may publish in the future.

Co-authorship network of co-authors of M. J. Orren

This figure shows the co-authorship network connecting the top 25 collaborators of M. J. Orren. A scholar is included among the top collaborators of M. J. Orren 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 M. J. Orren. M. J. Orren 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

#	Work	Indexed citations
1	The Chemistry and Meiofauna of Some Unpolluted Sandy Beaches in South Africa 2008 ·M. J. Orren, (unknown)	0
2	Supply and demand of nutrients and dissolved organic matter at and across the NW European shelf break in relation to hydrography and biogeochemical activity 2001 ·Deep Sea Research Part II Topical Studies in Oceanography ·(unknown), (unknown), Axel Miller, U. H. Brockmann, (unknown), (unknown), (unknown), Avan Antia, W. Balzer, Lei Chou, Marc Elskens, W. Helder, Ian Joint, M. J. Orren	34
3	The nutrient characteristics of the Agulhas Bank 1996 ·South African Journal of Marine Science ·J. R. E. Lutjeharms, (unknown), Isabelle Ansorge, (unknown), M. J. Orren	25
4	Measurements of atmospheric mercury concentrations in Northwestern and Central Europe — Comparison of experimental data and model results 1995 ·Atmospheric Environment ·Ralf Ebinghaus, H. H. Kock, S. G. Jennings, (unknown), M. J. Orren	36
5	A critical evaluation for the determination of amino acids in the marine environment by derivatization using 9-fluorenylmethyl chloroformate (FMOC-Cl) and reversed phase HPLC separation 1988 ·South African Journal of Marine Science ·(unknown), Pedro M. S. Monteiro, M. J. Orren	6
6	Trace metal distribution in different chemical fractions of nearshore marine sediments 1986 ·Estuarine Coastal and Shelf Science ·(unknown), (unknown), M. J. Orren	37
7	The Determination of Boron by Inductively Coupled Plasma Atomic Emission Spectroscopy. Part 2. Applications to South African Environmental Samples 1986 ·International Journal of Environmental & Analytical Chemistry ·(unknown), M. J. Orren	12
8	The Determination of Boron by Inductively Coupled Plasma Atomic Emission Spectroscopy. Part 1: Method Development 1986 ·International Journal of Environmental & Analytical Chemistry ·(unknown), M. J. Orren	12
9	Haemocyanin and protein concentrations in the blood of the sandy-beach whelk Bullia digitalis (Dillwyn) 1985 ·Journal of Molluscan Studies ·Alastair Brown, (unknown), M. J. Orren	2
10	Trace metals in the Southern Ocean: on the geochemistry of copper 1985 ·Marine Chemistry ·Pedro M. S. Monteiro, M. J. Orren	10
11	Determination of Beryllium and Lithium in Coal Ash by Inductively Coupled Plasma Atomic Emission Spectroscopy 1985 ·International Journal of Environmental & Analytical Chemistry ·(unknown), M. J. Orren, (unknown)	8
12	Ratio and population density of psammolittoral meiofauna as a perturbation indicator of sandy beaches in South Africa 1983 ·Environmental Monitoring and Assessment ·(unknown), (unknown), (unknown), (unknown), (unknown), (unknown), M. J. Orren	21
13	Suggestion to ‘Baseline’—A record of contamination levels 1983 ·Marine Pollution Bulletin ·(unknown), M. J. Orren	5
14	Flux of Cadmium through a Laboratory Food Chain (Media – Algae – Mussel) and Its Effects 1982 ·Water Science & Technology ·(unknown), M. J. Orren	3
15	Variations in trace metal content of the mussel Choromytilus meridionalis (Kr.) with season and sex 1980 ·Marine Pollution Bulletin ·M. J. Orren, (unknown), (unknown), (unknown)	75
16	TOXICITY OF CADMIUM TOBULLIA DIGITALIS(PROSOBRANCHIATA: NASSARIDAE) 1976 ·Transactions of the Royal Society of South Africa ·(unknown), (unknown), M. J. Orren	13
17	Some interelement relationships between lunar rocks and fines, and stony meteorites 1971 ·J. P. Willis, L.H. Ahrens, R. V. Danchin, A. J. Erlank, J. J. Gurney, (unknown), T.S. McCarthy, M. J. Orren	42
18	A rapid method for the determination of polonium-210 and lead-210 in sea water 1970 ·Analytica Chimica Acta ·L. V. Shannon, M. J. Orren	14
19	Polonium-210 and lead-210 in the marine environment 1970 ·Geochimica et Cosmochimica Acta ·L. V. Shannon, R.D. Cherry, M. J. Orren	130
20	Trace Element Concentrations in the Sea off South Africa 1966 ·Nature ·(unknown), M. J. Orren	3

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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