10 BÜCHER, DIE MIT «ULTRAMAFIC» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
ultramafic in der folgenden bibliographischen Auswahl. Bücher, die mit
ultramafic im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
Ultramafic Rocks of the Appalachian Piedmont
The other three ultramafic suites in the eastern Piedmont are probably all parts of
ophiolite sequences. The Halifax County complex is the most intact and best
documented. The Bayleaf ultramafic bodies are exotic blocks within an ophiolitic
...
Steven K. Mittwede, Edward F. Stoddard,
1989
2
Industrial Minerals and Extractive Industry Geology: Based ...
Industrial minerals associated with ultramafic rocks in Norway BRIAN A. STURTf.
HAVARD GAUTNEB, TOM HELDAL & LARS PETTER NILSSON Geological
Survey of Norway, Leiv Eirikssons vei 39, Trondheim N-7491, Norway (e-mail:
Lars.
P. W. Scott, Colin Malcolm Bristow,
2002
3
Petrology of the Duke Island
Ultramafic Complex, ...
Soc. America Mem. 80, 230 p. Irvine, T. N., 1959, The ultramafic complex and
related rocks of Duke Island, southeastern Alaska [Ph.D. thesis]: Pasadena,
California Inst. Technology, 320 p. 1963, Origin of the ultramafic complex at Duke
Island, ...
4
Rare Earth Elements in
Ultramafic and Mafic Rocks and their ...
Figure 2.5 The graphs of relationship between Cr# % = Cr ⋅ 100/(Cr + Al),% and
Mg# % = Mg ⋅ 100/ (Mg + Fe2+) of the accessory chrome-spinels from ultramafic
rocks from some ultramafic massifs. a – Ergak massif (West Sayan, Russia) ...
5
Igneous Rocks and Processes: A Practical Guide
Ultramafic and ultrabasic rocks,thoughnotabundant attheEarth's surface,
providevaluable insights into basalt magma genesisandmantlesource domains.
Anigneouspetrologist may encounter such rocks in three distinct settings: as early
...
6
Geological Studies in the Klamath Mountains Province, ...
an orogenic belt initiated significant rethinking of the tectonic significance of the
so-called “alpine-type” ultramafic rocks. The Dutch geologist W.P. de Roever (
1957) had made a similar suggestion about the significance of alpine-type
ultramafic ...
Arthur W. Snoke, Calvin G. Barnes,
2006
7
Ophiolites in Earth History
Understanding of this history is confounded by the presence of five partial
metamorphic overprints and by similar Ti enrichments in spinels from Blue Ridge
and modern mid-ocean ridge basalt ultramafic rocks that result from different ...
Yildirim Dilek, Paul T. Robinson,
2003
8
Precambrian Geology of the Tobacco Root Mountains, Montana
INTRODUCTION Lenses of deformed and metamorphosed ultramafic rocks occur
within many Archean and Proterozoic supracrustal ter- ranes (e.g., Paktunc, 1984
; Srikantappa et al., 1984; Wilson and Hyndman, 1990; Occhipinti et al., 1998; ...
9
Ophiolite Concept and the Evolution of Geological Thought
Yildirim Dilek, Sally Newcomb. Bouguer Gravity Profile (o=2.67) Figure 1 2.
Schematic cross-section across the Papuan Ultramafic Belt, showing its tectonic
emplacement over the Papuan shield, and its seaward extension, suggested by
the ...
Yildirim Dilek, Sally Newcomb,
2003
10
Tectonic Development of the Eastern Mediterranean Region
Quite commonly, the gabbroic lenses and dykes in the ultramafic rocks and
ultramafic cumulates show signs of rodingitization such as increasing Ca content.
In these cases, plagioclase is normally replaced by hydrogrossular and prehnite.
A. H. F. Robertson, Demosthenis Mountrakis,
2006
10 NACHRICHTEN, IN DENEN DER BEGRIFF «ULTRAMAFIC» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
ultramafic im Kontext der folgenden Nachrichten gebraucht wird.
St George Mining starts drilling massive nickel sulphide target
The known presence of nickel sulphides in this channel increases the potential of the ultramafic contact, which is the priority surface for exploration, to host ... «Proactive Investors Australia, Aug 15»
St George Mining closes in on VMS-style base metal system
Adding to the potential, in the latest drilling visible chalcopyrite was observed in both the mafic units intercalated with the ultramafic horizons and within the ... «Proactive Investors Australia, Jul 15»
Pioneer Resources has geological breakthrough at Blair Nickel Mine
The Blair Ultramafic Dome proposed has at least 12 kilometres of demonstrably prospective basal ultramafic contact target zone outside of the immediate Blair ... «Proactive Investors USA & Canada, Jul 15»
Segue Resources to start drilling Plumridge Nickel in Fraser Range
Adding interest - several high priority targets will be drill-tested to confirm the presence of mafic-ultramafic intrusions, commencing with targets E1 and E15. «Proactive Investors Australia, Jul 15»
St George Mining hits ultramafic sequences and sulphidic sediments
Ultramafic sequences and sulphidic sediments have been intersected with anomalous nickel, copper and zinc values in spot XRF analysis. Detailed geological ... «Proactive Investors Australia, Jul 15»
Canada Strategic Metals Geophysical Survey Identified Targets at …
Ultramafic rocks are also found in close proximity to gold mineralization at the Eastmain Mine, and have been thought to play a role in the Eastmain deposit ... «MarketWatch, Jul 15»
Kibo Mining releases data interpretation results
The report confirmed the position, strike extent and internal structure of two new mafic-ultramafic zones expanding significantly the previous known “footprint” of ... «African Mining, Jul 15»
St George Mining finds visible copper, zinc sulphides in drill core
These were found within an additional thick ultramafic unit intersected after the DDRDD0005 hole was deepened to test for an extension of the lower ultramafic ... «Proactive Investors USA & Canada, Jul 15»
Pioneer Resources drilling extends nickel anomaly in Albany Fraser …
Proof of concept drilling at Fairwater has successfully confirmed the presence of ultramafic and mafic rocks, which was the primary objective for the program. «Proactive Investors USA & Canada, Jul 15»
St George Mining identifies massive nickel sulphide potential
St George Mining (ASX:SGQ) has intersected anomalous nickel and zinc associated with sulphides within a thick ultramafic unit with its first hole targeting ... «Proactive Investors Chinese, Jun 15»