10 ENGLISH BOOKS RELATING TO «CYMOID»
Discover the use of
cymoid in the following bibliographical selection. Books relating to
cymoid and brief extracts from same to provide context of its use in English literature.
1
Great Basin Evolution and Metallogeny: Geological Society of ...
John C. Marma* and Randall B. Vance Newmont Mining Corporation, Elko,
Nevada 89801 ABSTRACT The Gold Circle (Midas) district, Elko County, Nevada
, contains numerous well-developed examples of cymoid loops, which
significantly ...
Geological Society of Nevada. Symposium, Roger C. Steininger, Bill Pennell, 2011
2
Mineral Frontiers on Indian Lands
Shaded in red is the general outline of current gold resources. Shaded in green
are two areas to be considered for additional resource development. Within the
green areas are two un-drilled cymoid loop structures of the Modoc fault system,
...
3
U.S. Geological Survey Professional Paper
Cymoid-type zoned vein structures in the Freeland- Lamartine district were
interpreted by Harrison (1955) to relate to periodic fracturing accompanied by
stages of mineralization. The wallrocks here are altered uniformly where
observed ...
4
Prospecting and Exploration of Mineral Deposits
Structure of this shape can be deduced from a composite “cymoid loop" (Fig. 3 l ).
Mineralizations of fracture systems related to a composite “cymoid loop" are also
known (Fig. 32). r 4/ \ 0 a 31. Development of a horse-tail structure. a — cymoid ...
M. Böhmer, M. Kucera, 1986
5
Ore Textures: Recognition and Interpretation
Plate 24 DE Cymoid Loop Kangaroo Hills tinfield, Queensland, Australia. A small
scale example of a quartz vein system viewed on the weathered surface and on
the sliced rock. The plate illustrates a species of breaking pattern, subsequently ...
6
Uranium Deposits in the Eureka Gulch Area, Central City ...
The ideal geographic expression of this combination of processes is a long,
cymoid-shaped vein containing pyrite-gold ore in the center, composite ore along
the curving part, and galena-sphalerite ore at the extremities. Effect of topography
.
Paul Kibler Sims, Frank W. Osterwald, Edwin Wilson Tooker, 1955
7
Papers on Mineral Deposits of Western North America: Fifth ...
The longest gap, along the vein strike, between the known ore-grade shoots
occurs between the Sirena and Las Torres mines where 2 km of nearly barren
Veta Madre lies to the footwall of two subsidiary fractures forming a cymoid loop .
International Association on the Genesis of Ore Deposits, John Drew Ridge, 1979
8
Transactions of the Geological Society of South Africa
Vertical as well as dextral movement is indicated by sub-horizontal spurs and
cymoid loop structures (Meh- liss. 1968; Stowe, 1979a). Northwards from Que
Que this shear zone continues obliquely across various schist-belt lithologies
and is ...
Geological Society of South Africa, 1980
9
Geological Survey Professional Paper
... are shaped like cymoid curves (McKinstry, 1948, p. 314-315) ; others more
characteristically have a horsetail pattern at changes in strike or dip. The veins
generally are 5 feet or less wide and average 1 to 3 feet but locally are as much
as 30 ...
BC represents the plane of the cymoid loop (bearing 120°) that lies at
approximately 30° to the vertical shear plane. The dip of the cymoid fracture is to
the northeast at an average value of 75°. A is the pole to the plane of the cymoid
loop.
