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Trace metal enrichment in a tidally influenced, rural tributary of the upper Chesapeake Bay

Autor: C, Krahforst, L A, Sherman, K, Kehm

Publikováno v: Marine Pollution Bulletin. 175:113377

Trace metals in sediments from the Chester River, a tidal tributary of the upper Chesapeake Bay with a predominantly rural, agricultural watershed, were investigated to better understand distributions and potential sources of metals. Sediments were a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94ea00683847390859fbc924df684c9d
https://doi.org/10.1016/j.marpolbul.2022.113377

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Upper limit concentrations of trapped xenon in individual interplanetary dust particles from the stratosphere

Autor: K. Kehm, Jamie Gilmour, Sarah Crowther, C. M. Hohenberg, R. K. Mohapatra

Publikováno v: Meteoritics & Planetary Science. 44:249-259

The Xe contents in 25 individual stratospheric interplanetary dust particles were measured in two different laboratories using focused laser micro-gas extraction and (1) a conventional low-blank magnetic sector mass spectrometer (Washington Universit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::edc35899c000ba02d2db0e5f842c831f
https://doi.org/10.1111/j.1945-5100.2009.tb00732.x

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Anomalous xenon in zone 13 Okelobondo

Autor: A. P. Meshik, C. M. Hohenberg, K. Kehm

Publikováno v: Geochimica et Cosmochimica Acta. 64:1651-1661

In situ laser extraction techniques were applied for the study of heavy noble gases in a polished section of Zone 13 from the natural nuclear reactor in Okelobondo. Three main mineral phases were identified in this polished section using SEM-EDX. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::74c485565f059b54c5049a81e4b95a25
https://doi.org/10.1016/s0016-7037(00)00334-3

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In situdetermination of iodine content and iodine-xenon systematics in silicates and troilite phases in chondrules from the LL3 chondrite Semarkona

Autor: J. N. Goswami, C. M. Hohenberg, Jeffrey N. Grossman, S. Sahijpal, K. Kehm, Timothy D. Swindle

Publikováno v: Meteoritics & Planetary Science. 33:527-534

Iodine concentrations in small domains (~10 µm) of silicates and troilite (FeS) phases in three chondrules from the Semarkona (LL3) meteorite were determined by an ion microprobe. Independent determination of I content in some of these phases was ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::112727ff210ca2b4890f07ba66f841c5
https://doi.org/10.1111/j.1945-5100.1998.tb01657.x

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Secular changes in the xenon and krypton abundances in the solar wind recorded in single lunar grains

Autor: K. Kehm, A. P. Meshik, C. M. Hohenberg, Rainer Wieler

Publikováno v: Nature. 384:46-49

NOBLE gases implanted into the lunar surface trace elemental and isotopic abundances in the solar wind during the Sun's lifetime, and so potentially provide a valuable record of changing physical processes on the Sun. But the interpretation of this r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1a033f9185ed379d5cf8ba574a210a1
https://doi.org/10.1038/384046a0

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Origin and history of impact-melt rocks of enstatite chondrite parentage

Autor: Donald D. Bogard, I. Casanova, C. M. Hohenberg, Daniel H. Garrison, K. Kehm, Adrian J. Brearley, R. H. Nichols, Marilyn M. Lindstrom, Klaus Keil, Timothy J. McCoy

Publikováno v: Geochimica et Cosmochimica Acta. 59:161-175

We have conducted petrologic, chemical, and isotopic studies of two impact-produced rocks of enstatite chondrite parentage. Ilafegh 009 is a total impact-melt rock with no residual lithic clasts. Formation on the EL chondrite parent body is suggested

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f9d82cd5edb1855e39089c277a2b7b9
https://doi.org/10.1016/0016-7037(94)00231-a

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I-Xe studies of the Acapulco meteorite: Absolute I-Xe ages of individual phosphate grains and the Bjurböle standard

Autor: Kurt Marti, Y. Kim, R. H. Nichols, K. Kehm, C. M. Hohenberg

Publikováno v: Geochimica et Cosmochimica Acta. 58:2553-2561

We have measured Kr and Xe by laser volatilization of seventeen individual neutron-irradiated phosphate grains (nine apatite and eight merrillite) separated from the (reclassified) A-chondrite Acapulco. Radiogenic 129Xe from now-extinct 129I is only

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9651144f21b5c52bb91c5d00fb74a18
https://doi.org/10.1016/0016-7037(94)90031-0

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