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The occurrence of hornblendite pods accompanied by quartz-rich quartz dioritic
gneiss between the quartz dioritic and granitic gneisses suggests that fluid
infiltration and thermal metamorphism during granite intrusion also caused partial
...
Martin J. van Kranendonk, Hugh R.H. Smithies, Vickie Bennett, 2007
2
Geology and Ore Deposits of the Bokan Mountain ...
The contacts between the dioritic unit and syenite near Stone Rock Bay and
south of McLean Ann are poorly exposed, but cross- cutting relations indicate that
the syenite has intruded the dioritic rocks. In a few places near the boss of Bokan
...
Edward Malcolm MacKevett, 1963
3
Proterozoic Crustal Evolution
sive interactions between diorite and granite and both have basal dioritic rocks
that locally grade downward into underlying massive leuconoritic anorthosite. In
the Laramie anorthosite complex, the Maloin Ranch pluton, a composite layered
...
4
Geological Survey Professional Paper
Only a small part of the pluton extends into the Holden quadrangle, and here the
rocks are gneissic granodiorite. The High Pass and Buck Creek plutons are
tabular, somewhat silllike masses of granodioritic and quartz dioritic composition.
Geological Survey (U.S.), 1982
5
United States Geological Survey Professional Paper
The rocks are mainly of dioritic and gabbroic type; quartz diorite, or tonalite, is
also recorded. The relation of intertectonic rocks to older rocks of the Aden
Metamorphic Group is illustrated in a number of exposures in the Mukayras pass.
6
The Second Hutton Symposium on the Origin of Granites and ...
Mantle-derived compositions which could represent less “mature” equivalents of
the high-Sr granites include: (1) dioritic enclaves; (2) mafic metaigneous lower
crustal xenoliths, and (3) kersantites and minettes (Turpin et al. 1988), which will
...
P. E. Brown, B. W. Chappell, 1992
7
Pre-Cambrian Geology of North America
In general remarks on the geology of the Marquette district the succession is said
to* be: (1) Granitic group, (2) Dioritic group, (3) Quartzite group, (4) Iron group, (5)
Arenaceous Slate group, (6) Mica schist group, and (7) Serpentine group; but ...
Charles Richard Van Hise, Charles Kenneth Leith, 1909
8
U.S. Geological Survey circular
The deformation and metamorphism of these rocks occurred in part prior to the
emplacement of dioritic dikes and stocks, although in most areas the younger
diorites share these deformational fabrics. A heterogeneous assemblage of
dioritic ...
Geological Survey (U.S.), 1983
(3) Large positive ovoid magnetic anomalies occur over Tertiary and Quaternary
igneous rocks that range in age from 38 m.y. to about 1.0 m.y. These rocks are
dioritic to granitic in composition and presumably are related to subduction in the
...
10
Correlation Papers: Archean and Algonkian
In the Granitic group the granites are found interstratified with the Huronian
schists of the Dioritic group. The granites are usually middling coarse grained
and in the main are massive, although distinct gneissoid rocks have a limited
occurrence ...
Charles Richard Van Hise, 1892
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Amended Press Release: Integra Identifies Gold Exploration Target …
... mines: intrusive dioritic "plugs," a favorable host rock which dips northeast towards the Sigma mine, and similar quartz-tourmaline-pyrite gold ... «Stockhouse, 六月 15»
Midland Expands Its Gold Position on La Peltrie Southeast of Detour …
The granodioritic to dioritic syntectonic Carheil Pluton lies in the central part of the property. A summer field program is currently in preparation ... «Digital Journal, 五月 15»
Eurasian Minerals Reports Initial Resource Estimate and Project …
The porphyry centers occur as Cretaceous-age dioritic stocks that intruded and hornfels-altered siltstone and sandstone sedimentary ... «Canadian Mining Journal, 五月 15»
Lundin, Beaty bullish on Ecuador's prospects
Cangrejos' mineralization is associated with a sequence of intercalated porphyritic-dioritic intrusions and hydrothermal breccias. Gold grades ... «The Northern Miner, 四月 15»
Aziana Ltd kicks off drilling at Anosivola Copper Gold project
... consisting of a series of amphibolite facies volcanics, schists, gneisses and marbles, intruded by several phases of granitic-dioritic melts. «Proactive Investors Australia, 三月 15»
ANGKOR GOLD CORP.: Discovery of Two New Mineral Targets in …
To the northeast it forms a rugged ridge of silicified dioritic volcaniclastic with finely crystalline disseminated pyrite. The whole cap covers a ... «GlobeNewswire, 十月 14»
DIOS Exploration Inc.-Heberto: 1.89 g/t Gold Envelope Within NS …
... by dioritic plugs and related breccias. Brittle north-south structures seem to have controlled breccia setting, alteration and gold mineralization. «MarketWatch, 十月 14»
Kirkcaldy Capital Corp. and Tigris Resources Limited Announce …
Vein-style and vein-stockwork style gold and copper mineralization occurs over an area of approximately 4km2 and is hosted in dioritic rocks ... «Marketwired, 九月 14»
Ecuador Gold Announces Exploration Channel Sample Results Up …
Porphyry copper mineralization is associated with a Late Jurassic dioritic intrusive complex hosted by Jurassic age plutonic rocks of the Zamora ... «Marketwired, 八月 14»
Fjordland and Sumac Increase Drilling to 4500 Metres at Dillard …
Chalcopyrite, pyrite and minor bornite mineralization occurs within altered Nicola Group andesitic rocks and coeval intrusive dioritic rocks. «Marketwired, 八月 14»
