in climate, and in lava flow age and texture. Weathering supplied most of the Sr in most of the sites, but atmo- spheric deposition contributed 30±50% of ... Tags: 4420180m
Textures and Fabrics of Upper-Mantle Peridotites as Illustrated by ...
complete recrystallization of a porphyroclastic texture, probably after an intensive flowage. It compares with the textures of crustal granulites, ... Tags: illustratedperidotitesmantleupperfabrics
Feb 12, 2004 ... between plagioclase grains. ● Trachytic texture - a texture wherein plagioclase grains show a preferred orientation due to flowage, and the ... Tags: rocksigneoustextures
A combined central- and fissure-type phonolitic volcano in western ...
phenocrysts are platey and arranged to give a flowage texture, the dip of the flow lines usually corresponds with the dip of the lava as a whole. ... Tags: westernvolcanophonolitictypefissure
Anomalously young volcanoes on old hot-spot traces: I. Geology and ...
in the field on the basis of color and flowage texture, although in some ... developed flowage texture. Benmoreites are sparsely to moderately phyric ... Tags: geologytracesspotvolcanoesyoung
flowage texture is exhibited in the case of the amphibole phenocrysts which show on the whole a nearly random orientation. Unlike amphiboles ... Tags: arizonaboulderneardikescamptonite
Petrologic and Geochemical Composition of the AND-2A Core, ANDRILL ...
phenocrysts define a flowage texture. According to. XRF major element data, this sample plots in the phonolite field in the TAS diagram (Fig. 2). ... Tags: andrillcorecompositiongeochemicalpetrologic
The Texture and Origin of Some Banded or Schistose Sulphide Ores
formed, will show in its texture that flowage has taken place un- less complete recrystallization has occurred. The extent of re- ... Tags: oressulphideschistosebandedsome
