KSIĄŻKI POWIĄZANE ZE SŁOWEM «EUTAXITIC»
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1
U.S. Geological Survey professional paper
It has a well- defined eutaxitic structure, and flattened pumice fragments are as
long as 2 feet. Phenocrysts of quartz and feldspar make up 5 to 10 percent of
typical specimens (table 2, columns 12-22) ; hornblende is commonly present in
trace ...
Geological Survey (U.S.), 1968
2
Geological Survey Professional Paper
Certain terms used in describing the structural and textural features of the ash-
flow tuffs, such as "fluidal," "eutaxitic," and "vitroclastic," are better understood
from photographs than from words. Fluidal structure in a hand specimen is
illustrated ...
3
Geological Survey professional paper
Eutaxitic texture, later devitrifled. Rhyolitic tuff, devitrifled and probably silicifled.
Rhyolitic tuff. Much secondary carbonate has been introduced between tuff
fragments. Rhyolite with glassy eutaxitic texture. Rhyolite. Eutaxitic tuffaceous
texture ...
Geological Survey (U.S.), Geological Survey (U.S.). Geographic Names Information Management, 1952
4
Studies in New England Geology: A Memoir in Honor of C. Wroe ...
It grades upward from an incompletely welded clast-rich tuff, to a phenocryst-poor
, pumice-rich tuff with fluidal eutaxitic structure (Fig. 5). Felsitic fragments range in
diameter from 1 to 9 cm. The pumice fragments near the base of the zone are ...
Paul C. Lyons, Arthur H. Brownlow, 1976
5
New Zealand Journal of Geology and Geophysics
welded tuff containing intratclluric crystals or phenocrysts which giv(- it the
appearance of porphyritic flow rock. In thin section the rock has a eutaxitic
structure which may be obscured locally where crystallization has been intense.
This zone is ...
6
Pyroclastic Density Currents and the Sedimentation of ...
Eutaxitic, rheomorphic and lava-like lithofacies (e.g. emLT; edbLT; rheomLT; lava
-likeT) Description Some massive and bedded lithofacies of ignimbrites possess
a eutaxitic fabric of deformed juvenile pyroclasts, for example fiamme and ...
Michael J. Branney, B. Peter Kokelaar, 2002
7
Fluid Motions in Volcanic Conduits: A Source of Seismic and ...
4a-c). These structures are abundant in the inner (Slievebrack) rhyolite body, but
rare or absent in the outer (Carrive) rhyolite body (Emeleus 1962). 1n three
dimensions, these structures define a planar (eutaxitic) fabric measurable in
outcrop.
Steve J. Lane, Jennifer Susan Gilbert, 2008
8
Geology of the Arisaig Area, Antigonish County, Nova Scotia
These veins, however, clearly partly predate the eutaxitic foliation because where
they cut the uncollapsed pumice plates, they are almost planar; whereas in the
eutaxitic matrix, they are ptygmatically folded. This is in direct contrast to ...
9
U.S. Geological Survey Bulletin
90BSL102 Morokho. Porphyritic dacite; phenocrysts are biotite, plagioclase, and
quartz. 90BSL104 Loma Grande. Eutaxitic dacite ash-flow tuff with about 15
percent crystals; sample from near top of tuff. Crystals are 7 percent biotite, 4
percent ...
10
Compositional characteristics of middle to upper Tertiary ...
90BSL102 Morokho. Porphyritic dacite; phenocrysts are biotite, plagioclase, and
quartz. 90BSL104 Loma Grande. Eutaxitic dacite ash-flow tuff with about 15
percent crystals; sample from near top of tuff. Crystals are 7 percent biotite, 4
percent ...
E. A. Du Bray, Geological Survey (U.S.), 1995
