نتایج جستجو برای: aureole

تعداد نتایج: 193  

2011
Bangsheng Yin Qilong Min Minzheng Duan M. J. Bartholomew A. M. Vogelmann D. D. Turner

[1] A Thin-Cloud Rotating Shadowband Radiometer (TCRSR) was developed and deployed in a field test at the Atmospheric Radiation Measurement Climate Research Facility’s Southern Great Plains site. The TCRSR measures the forward-scattering lobe of the direct solar beam (i.e., the solar aureole) through an optically thin cloud (optical depth < 8). We applied the retrieval algorithm of Min and Duan...

Journal: :Applied optics 1988
G Viera M A Box

We employ the singular function theory, which is the natural framework within which to discuss the analysis of first kind Fredholm integral equations, to analyze fully the information available from an aerosol aureole scattering experiment. This information is, of course, of two kinds: first, the number of pieces of information available for a given experimental error level and, second, the typ...

Journal: :Journal of Atmospheric and Oceanic Technology 2009

2006
J. A. T. SMELLIE

FEW analytical data exist for staurolite, in comparison with other metamorphic minerals such as garnet. However, using the microprobe, Hollister and Bence (1967) working with relatively inclusion-free specimens from the Kwoiek Area, British Columbia, established compositional zoning across staurolite in addition to compositional irregularities across sectoral twin boundaries. The staurolites st...

احمدی خلجی, احمد , زارع شولی, معصومه , ساکی, عادل , طهماسبی, زهرا ,

The intrusion of Boroujerd Granitoid Complex into the metamorphosed pelitic rocks has resulted in the formation of pelitic hornfelses and anatectic migmatites in its metamorphic aureole. The effective melting reactions include fluid-present and fluid-absent. Fluid-present melting reactions may have consumed the whole free fluid in the aureole as a result of which melting process continued throu...

Modjarrad , Monir ,

The purpose of this study is to explore the influence of whole rock chemistry of metamorphic protolith on the crystal size distribution curve of garnet in metapelites. With this aim, perfect mosaical photograph from two groups of metapelites have been prepared: regional (Shahindezh schists) and contact (Dorbeh Oshnavieh aureole) metamorphic rocks image processed and their patterns illustrated. ...

Journal: :Geochemistry Geophysics Geosystems 2021

To assess thermal and kinetic influences on atomic mobility mineral (neo)crystallization, clumped-isotope abundances of calcite dolomite were measured alongside cation ordering U–Pb dates, across metamorphic grade within the c. 35–30 Ma Alta stock contact aureole, Utah, USA. Average Δ47 values inside aureole reflect blocking temperature (300°C–350°C) during cooling from peak temperatures. Dolom...

2003
T. Mark Harrison

The conditions at which monazite and allanite were produced and destroyed during prograde metamorphism of pelitic rocks were determined in a Buchan and a Barrovian regional terrain and in a contact aureole, all from northern New England, USA. Pelites from the chlorite zone of each area contain monazite that has an inclusion-free core surrounded by a highly irregular, inclusion-rich rim. Texture...

2003
J. K. Morgan P. J. McGovern

Introduction: Large basaltic volcanoes, such as Olympus Mons on Mars, and the Hawaiian volcanoes on Earth, are thought to be subject to large scale slope failure and flank collapse, which scatter landslide and avalanche debris (a.k.a., aureole deposits) about the base of the edifice [1], [2], [3], [4], [5]. Volcano growth may also be accompanied by gravitational relaxation of the edifice, refer...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید