منابع مشابه
The occurrence of paragonite in chloritoid schists from Stonehaven, Scotland
Paragonite has been found in two chloritoid-chlorite-mica schists from the Dalradian, north of Stonehaven. The principal bulk-chemical constraints on the occurrence of this mineral within the chloritoid zone appear to be the ratios of soda to potash and the A1203 contents of the rock. The composition of paragonite coexisting with muscovite indicates a crystallization temperature of 550 ~ for ro...
متن کاملEthnobotanical study in the highland of Alvand and Tuyserkan, Iran
Background and objectives: Medicinal plants are widely used by people in the treatment of various diseases. These resources are usually regarded as part of cultural traditional knowledge. The aim of this study was to identify the information about the medicinal plants used by indigenous people of some regions of Hamedan province, Iran. Methods: The present ethnobotanical study was conducted in ...
متن کاملAnisotropic strength and deformational behavior of Himalayan schists
Anisotropy, which is characteristic of metamorphic rocks such as schists, is due to a process of metamorphic differentiation. Preferred orientation of minerals like mica and chlorite in response to tectonic stresses makes schistose rocks foliated. As a result their engineering properties vary with the direction of loading. The influence of transverse anisotropy on strength and deformational res...
متن کاملAssociation between recent internal travel and malaria in Ugandan highland and highland fringe areas
OBJECTIVE To examine the association between travel (recency of travel, transmission intensity at destination compared to origin and duration of travel) and confirmed malaria in Uganda. METHODS Health facility-based case-control study in highland (~2200 m), and highland fringe (~1500 m) areas with adjustment for other covariates. RESULTS In the highland site, patients who had travelled to a...
متن کاملEvaluating magnetic lineations (AMS) in deformed rocks
Magnetic lineation in rocks is given by a cluster of the principal axes of maximum susceptibility (Kmax) of the Anisotropy of Magnetic Susceptibility (AMS) tensor. In deformed rocks, magnetic lineations are generally considered to be the result of either bedding and cleavage intersection or they parallel the tectonic extension direction in high strain zones. Our AMS determinations, based on a v...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1951
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800069144