 | | Journal (article/letter/editorial) | | Crystallization history and textures of the Rearing Pond gabbro,northwesternWisconsin JauEsF. Or-rrrsreo...Plausburgh, New York 12901 Abstract The Rearing Pond intrusion is a small basicbody that displaysa rangeof...fractionation. The quaternary system (Osborn and anorthite-forsterite-diopside-silica phase changes that...The example used is a small Keweenawan gabbro intrusion which displays a textural change from ophitic...could not be determined for the intrusion' Geologic setting The Rearing Pond intrustion is one of several |  | | Journal (article/letter/editorial) | | Proterozoic Potato River Layered Intrusion, Northern Wisconsin, USA by KENNETH W. KLEWIN Department of...DeKalb, Illinois 60115 ABSTRACT The Potato River intrusion is a Keweenawan (1100 Ma) mafic pluton emplaced...rocks of the Picritic zone indicate that the intrusion was open to additional injections of mafic magma...liquids intruded along the upper margin of the intrusion during regional tilting, but Roof zone granitic...aluminous, which suggests that the upper part of the intrusion has been enriched in plagioclase by convection-aided |  | | Report (volume) | | of Kentucky Geol. Survey County Rept. - Kentucky Geological Survey County Report. University of Kentucky...Analysts. Houston, Tex. Los Angeles County Mus. Contr. Sci. - Los Angeles County Museum Contributions in Science...Science. Los Angeles County Museum of Natural History. Los Angeles, Calif. Los Angeles County Mus. Nat. History...History Quart.- Los Angeles County Museum of Natural History Quarterly. Los Angeles, Calif. Louisiana Water...Dartmouth, Nova Scotia, Canada. Maryland Geol. Survey County Geol. Map Geologic Map. Baltimore, Md. Maryland |
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