Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Kim A. Waldron"'
Publikováno v:
Contributions to Mineralogy and Petrology. 127:291-304
Braid microperthitic alkali feldspars in the Klokken, South Greenland and Coldwell, Ontario syenite intrusions have bulk-compositional variations along grain boundaries called pleated rims. These, together with vein microperthites in aplites which cr
Publikováno v:
Contributions to Mineralogy and Petrology. 127:305-313
Microperthitic feldspar crystals containing low microcline in a braid intergrowth often have distinctive microtextures including coarse semi- to in-coherent grain-boundary pleated rims and fine coherent intracrystalline Ab- and Or-rich pleats (Lee et
Publikováno v:
Monthly Weather Review. 124:529-547
Numerical filters required to control spatial computational modes in a limited-area model (LAM) that uses the unstaggered. A grid are developed and tested over the complex topography of the Great Basin of the western United States. The filters are fo
Publikováno v:
Contributions to Mineralogy and Petrology. 116:360-364
Etching of alkali feldspar cleavage fragments with hydrofluoric acid vapor, followed by study of the surfaces by scanning electron microscopy (SEM), is a simple and rapid technique for characterizing the microtextures of crypto- and microperthites. T
Publikováno v:
Mineralogical Magazine. 57:687-695
The Or-rich part of optically blebby to lamellar mesoperthite crystals from an Adirondack granulite has been shown by TEM to be a lamellar cryptoperthite, composed dominantly of tweed orthoclase. A fluid-absent, two-stage thermal history is proposed
Publikováno v:
Monthly Weather Review. 121:2588-2610
Heavy convection that occurred over Tulsa, Oklahoma, during the evening and night of 26/27 May 1984 is studied through a series of numerical experiments with a regional forecast model. The emphasis is on diurnal oscillations of the boundary-layer flo
Feldspar microtextures and multistage thermal history of syenites from the Coldwell Complex, Ontario
Autor:
Kim A. Waldron, Ian Parsons
Publikováno v:
Contributions to Mineralogy and Petrology. 111:222-234
Optical and TEM (transmission electron microscopy) observations of perthites from augite syenites in the Coldwell Complex (Ontario) reveal a complex set of microtextures that outline a multistage thermal history. Regular microtextures (linear or brai
Publikováno v:
Scopus-Elsevier
Alkali feldspar phenocrysts (bulk composition Or75.0Ab24.6An0.4) in the subsolvus Shap granite comprise a fine-scale mixture of subregular pristine crypto- and micro-perthites with altered, micropore-rich feldspar with irregular microstructures. The
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