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Showing 1 to 16 of 16 for “"Southwestern Montana"”.
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PRESSURE-TEMPERATURE EVOLUTION OF METAPELITES WITHIN THE ANACONDA METAMORPHIC CORE COMPLEX, SOUTHWESTERN MONTANA
… Anaconda metamorphic core complex, located in southwestern Montana. Pseudosections were constructed using the computer program THERMOCALC (v. 3.26) in conjunction with the internally consistent dataset of Holland and Powell (1998, version 5.5, updated Nov. 2003) in the model system NCKFMASH …
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PRESSURE-TEMPERATURE EVOLUTION OF METAPELITES WITHIN THE ANACONDA METAMORPHIC CORE COMPLEX, SOUTHWESTERN MONTANA
… Anaconda metamorphic core complex, located in southwestern Montana. Pseudosections were constructed using the computer program THERMOCALC (v. 3.26) in conjunction with the internally consistent dataset of Holland and Powell (1998, version 5.5, updated Nov. 2003) in the model system NCKFMASH …
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THE CLIMATIC, BIOTIC AND TECTONIC EVOLUTION OF THE PALEOGENE RENOVA FORMATION OF SOUTHWESTERN MONTANA
<p>The Renova Formation of southwestern Montana contains an important record of Paleogene floral, faunal, climate and tectonic change in the northern Rocky Mountains. The period between the end of the early Eocene and the early Oligocene (~49-32 Ma) was a time of rapid and far-reaching climate …
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THE CLIMATIC, BIOTIC AND TECTONIC EVOLUTION OF THE PALEOGENE RENOVA FORMATION OF SOUTHWESTERN MONTANA
<p>The Renova Formation of southwestern Montana contains an important record of Paleogene floral, faunal, climate and tectonic change in the northern Rocky Mountains. The period between the end of the early Eocene and the early Oligocene (~49-32 Ma) was a time of rapid and far-reaching climate …
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The influence of an ecosystem engineer on nutrient subsidies and fish invasions in southwestern Montana
<p>Streams and associated riparian zones are among the world's most highly valued yet threatened ecosystems. Interest in using the ecosystem engineering behavior of beaver tomeet watershed conservation goals is becoming more pervasive, owing to substantive work documenting the physical effects of …
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The influence of an ecosystem engineer on nutrient subsidies and fish invasions in southwestern Montana
<p>Streams and associated riparian zones are among the world's most highly valued yet threatened ecosystems. Interest in using the ecosystem engineering behavior of beaver tomeet watershed conservation goals is becoming more pervasive, owing to substantive work documenting the physical effects of …
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Tertiary Sediments of the Big Hole Valley and Pioneer Mountains, Southwestern Montana: Age, Provenance, and Tectonic Implications
… of the Big Hole basin and Pioneer Mountains of southwestern Montana provide a record of regional extensional tectonism. Detailed observations of stratigraphy and sedimentology at widely scattered outcrops indicate the presence of paleosols, fine-grained debris flows, small alluvial channels, and …
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Tertiary Sediments of the Big Hole Valley and Pioneer Mountains, Southwestern Montana: Age, Provenance, and Tectonic Implications
… of the Big Hole basin and Pioneer Mountains of southwestern Montana provide a record of regional extensional tectonism. Detailed observations of stratigraphy and sedimentology at widely scattered outcrops indicate the presence of paleosols, fine-grained debris flows, small alluvial channels, and …
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Monazite Geochronology of the Madison Mylonite Zone and Environs, Southwestern Montana: With Implications for Precambrian Thermotectonic Evolution of the Northern Wyoming Province
… mylonite zone (MMZ), South Madison Range, Montana. Comparison of U-Pb and U-Th-Pb ages yielded by monazite grains from both shear zones and zircon rims from SSZ, a new timing for major SE-directed thrusting and formation of the MMZ and SSZ has been identified at ~2550 Ma. The collinearity …
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Aspen mycorrhizae: ecology, syntheses and growth studies
… communities of three aspen-covered sites in southwestern Montana and southeastern Idaho with varying stand age, conditions, and soil types were compared. In all, 39 species of ectomycorrhizal fungi were associated with P. tremuloides. Dominant fungal species varied by site. Species reported …
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PLACE-BASED CONSERVATION LEGISLATION AND NATIONAL FOREST MANAGEMENT: THE CASE OF THE BEAVERHEAD-DEERLODGE PARTNERSHIP
… case of the Beaverhead-Deerlodge Partnership in Southwestern Montana. The codification of place-based negotiated compromises over forest management is a significant departure from the administrative planning approach used to resolve multiple-use conflicts by the U.S. Forest Service. The goals of …
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PLACE-BASED CONSERVATION LEGISLATION AND NATIONAL FOREST MANAGEMENT: THE CASE OF THE BEAVERHEAD-DEERLODGE PARTNERSHIP
… case of the Beaverhead-Deerlodge Partnership in Southwestern Montana. The codification of place-based negotiated compromises over forest management is a significant departure from the administrative planning approach used to resolve multiple-use conflicts by the U.S. Forest Service. The goals of …
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Ecosystem engineering: beaver and the population structure of Columbia spotted frogs in western Montana
… STRUCTURE OF COLUMBIA SPOTTED FROGS IN WESTERN MONTANA Chairperson: Lisa Eby Beavers (Castor canadensis) are considered ecosystem engineers, altering hydrologic regimes, ecosystem processes, and modifying community structure. Effects of beaver on the spatial pattern of lentic habitat and …
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Ecosystem engineering: beaver and the population structure of Columbia spotted frogs in western Montana
… STRUCTURE OF COLUMBIA SPOTTED FROGS IN WESTERN MONTANA Chairperson: Lisa Eby Beavers (Castor canadensis) are considered ecosystem engineers, altering hydrologic regimes, ecosystem processes, and modifying community structure. Effects of beaver on the spatial pattern of lentic habitat and …
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Tectonic implications of mantle source changes recorded by Eocene-Oligocene basalts from the Dillon volcanic field southwest Montana (USA)
… Eocene to Oligo-Miocene Dillon volcanic field Montana (U.S.A.) record the change from dominantly compression to extensional tectonics, within the northern Rocky Mountains and accordingly, also present across the North American Cordillera. The Dillon volcanic field is composed of lavas and …
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Comparison of Bedding Thickness in some Sedimentary Materials
… and Lodgepole Formations of Mississippian age in southwestern Montana , Holland (1952). In addition, the stratification index of silt and clay beds in a section of Pleistocene Lake Agassiz sediments of Quaternary age in the "Mayville Ditch" in eastern North Dakota. A description of each …