Search Results - "Brown, Alex C."

Copper Isotope Constraints on the Genesis of the Keweenaw Peninsula Native Copper District, Michigan, USA: A Comment by Alex C. Brown

“…Well-grouped δ65Cu values (−0.3 to +0.8‰) from120 samples of native copper fromthe Keweenaw native copper district have been attributed [...]…”
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Constraints on Conceptual and Quantitative Modeling of Early Diagenetic Sediment-Hosted Stratiform Copper Mineralization by Alex C. Brown

“…Early diagenetic sediment-hosted stratiform copper (eSSC) mineralization results from low-temperature cuprous chloride complexes carried by saline aqueous…”
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Latent volcanic heat and further unique aspects of early diagenetic stratiform copper mineralization in the White Pine-Presque Isle District, northern Michigan by Brown, Alex C.

“…The curious occurrence of copper-rich early diagenetic sediment-hosted stratiform copper mineralization in the finest-grained facies of Nonesuch greybeds in…”
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Latent thermal effects from Porcupine Volcanics calderas underlying the White Pine-Presque Isle stratiform copper mineralization, northern Michigan by Brown, Alex C

“…Economic stratiform copper mineralization in the fine-grained, carbonaceous basal Nonesuch Formation of the approximately 50-km-wide White Pine-Presque Isle…”
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A process-based approach to estimating the copper derived from red beds in the sediment-hosted stratiform copper deposit model by Brown, Alex C

“…Most estimates of the total tonnage of copper metal leached from footwall red beds to form sediment-hosted stratiform copper deposits are based on the amounts…”
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Genesis of the Touissit-Bou Beker mississippi valley-type district (Morocco-Algeria) and its relationship to the Africa-Europe collision by Bouabdellah, Mohammed, Sangster, Donald F, Leach, David L, Brown, Alex C, Johnson, Craig A, Emsbo, Poul

“…The Mississippi Valley-type deposits of the Touissit-Bou Beker district are hosted by a 25 m thick sequence of diagenetically and hydrothermally dolomitized…”
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District-scale concentration of native copper lodes from a tectonically induced thermal plume of ore fluids on the Keweenaw Peninsula, northern Michigan by Brown, Alex C

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Reliability of the Diabetes Fear of Injecting and Self-Testing Questionnaire in Pediatric Patients With Type 1 Diabetes by Simmons, Jill H, McFann, Kim K, Brown, Alex C, Rewers, Amanda, Follansbee, Donna, Temple-Trujillo, Rita E, Klingensmith, Georgeanna J

“…The D-FlSQ is a 30-item self-report questionnaire consisting of two subscales that measure fear of self-injecting (FSI) and fear of self-testing (FST), the…”
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Geological context, mineralization, and timing of the Juramento sediment-hosted stratiform copper–silver deposit, Salta district, northwestern Argentina by Durieux, C. Gustavo, Brown, Alex C.

“…The Juramento deposit in northwestern Argentina exhibits several readily visible general characteristics of sediment-hosted stratiform copper (SSC)…”
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Genesis of native copper lodes in the Keweenaw District, northern Michigan; a hybrid evolved meteoric and metamorphogenic model by Brown, Alex C

“…The Keweenaw Peninsula of northern Michigan is well known for early diagenetic sulfide-dominant sediment-hosted stratiform copper mineralization hosted mainly…”
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Close linkage of copper (and uranium) transport to diagenetic reddening of “upstream” basin sediments for sediment-hosted stratiform copper (and roll-type uranium) mineralization by Brown, Alex C.

“…Copper and uranium may be closely associated metals in sedimentary basins in which “upstream” sediments have been diagenetically reddened (e.g.,…”
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Refinements for footwall red-bed diagenesis in the sediment-hosted stratiform copper deposits model by Brown, Alex C

“…The emplacement of copper in sediment-hosted stratiform copper deposits requires the circulation of a low-T chloride-rich brine in rift-filling footwall red…”
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Beatboxing: Teaching technical acoustical concepts through pop culture by Brown, Alex C., Shepherd, Micah, Neilsen, Tracianne B.

“…The motivation for this presentation is to demonstrate that vocal percussion, or “beatboxing,” can be a rich method of teaching and demonstrating various…”
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Archean gold-bearing quartz veins at the Sigma Mine, Abitibi greenstone belt, Quebec; Part I, Geologic relations and formation of the vein system by Robert, François, Brown, Alex C

“…The Sigma deposit consists of an Archean gold-bearing vein system in metavolcanic rocks intruded by an irregular body of porphyritic diorite, both affected by…”
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GENESIS OF NATIVE COPPER LODES IN THE KEWEENAW DISTRICT, NORTHERN MICHIGAN: A HYBRID EVOLVED METEORIC AND METAMOPHOGENIC MODEL by Brown, A. C.

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Archean gold-bearing quartz veins at the Sigma Mine, Abitibi greenstone belt, Quebec; Part II, Vein paragenesis and hydrothermal alteration by Robert, François, Brown, Alex C

“…The Sigma deposit consists of an Archean gold-bearing vein system in deformed volcanic rocks intruded by two generations of porphyries. The veins cut all rock…”
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Refinements for Footwall Redbed Diagenesis in the Sediment-Hosted Stratiform Copper Deposits Model by Brown, Alex C

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Synvolcanic and syntectonic gold mineralization at the Bousquet Mine, Abitibi greenstone belt, Quebec by Tourigny, Ghislain, Brown, Alex C, Hubert, Claude, Crépeau, Robert

“…The Bousquet pyrite gold deposit, consisting of disseminated- and vein-type mineralization in sheared and altered greenschist facies Archean volcanic rocks, is…”
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Geology and lithogeochemistry of the Huntingdon Deposit, cyprus-type mineralization in the ophiolite belt of the southeastern Quebec Appalachians by Trottier, Jacques, Gauthier, Michel, Brown, Alex C

“…The Huntingdon mine, situated in the ophiolite belt of the Quebec Applachians, is a 1.9-million-metric-ton copper deposit mined from 1954 to 1957. The deposit…”
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Zinc and iron metallogeny in the Maniwaki-Gracefield District, southwestern Quebec by Gauthier, Michel, Brown, Alex C

“…Zinc and iron deposits in the Grenville Supergroup metasedimentary rocks of the Maniwaki-Gracefield district, Quebec, exhibit close similarities to the…”
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