2 edition of Fenite, carbonatite and other alkalic rocks in the Bancroft-Haliburton-Muskoka regions found in the catalog.
Fenite, carbonatite and other alkalic rocks in the Bancroft-Haliburton-Muskoka regions
S. B. Lumbers
|Statement||S.B. Lumbers and V.M. Vertolli.|
|Series||Field trip guide -- no. 5|
|Contributions||Vertolli, Vincent., Geological Society of America. Annual Meeting|
|LC Classifications||QE446.O5 L85 1998|
|The Physical Object|
|Pagination||14 p. :|
|Number of Pages||14|
Reference: Jennifer Pell () Carbonatites, Nepheline Syenites, Kimberlites and Related Rocks in British Columbia. Brithish Columbia Ministry of Energy Bulletin ; Dalsin, M.L. () The Mineralogy, Geochemistry and Geochronology of the Wicheeda Carbonatite Complex, British Columbia. Thesis, University of British Columbia, Vancouver. It is not a mineral collecting area, but just to deviate from the minerals for a short moment, if you are a first time visitor to this part of Ontario, a drive through the park (and a stop at the interpretive centre) provides great scenery and a super introduction to the wildlife native to the region.
Quick NavTop Regions Containing Mineral List Rock Types References Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, . Firesand Creek Carbonatite Complex, McMurray Township, Algoma District, Ontario, Canada: Carbonatite complex, estimated age & Ma with approx. 4,5 km² surface area. The complex intrudes Archean rocks of the Wawa subprovince and has .
ORGIN OF THE HEMATITE DEPOSITS AT STEEPROCK LAKE, ONTARIO [T.L. Tanton] on *FREE* shipping on qualifying : T.L. Tanton. The Fen Complex (Norwegian: Fensfeltet) in Nome, Telemark, Norway is a region noted for an unusual suite of igneous l varieties of carbonatite are present in the area as well as lamprophyre, ijolite and other highly alkalic rocks. It is the type locality for fenite, a metasomatic rock commonly found around carbonatite and alkali intrusives.
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Fenite, carbonatite and other alkalic rocks in the Bancroft-Haliburton-Muskoka regions. [Canada]: Canada Geological Survey: University of Toronto ; [U.S.]: Geological Society of America,  (OCoLC) You can write a book review and share your experiences.
Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them. The Iron Hill alkaline complex, Powderhorn district, Colorado, is situated ~ km west of the alkaline complexes of the Wet Mountains area (Fig.
1; Olson et al., ) and is considered “the best example of the carbonatite-alkalic rock association in the United States” by Olson and Hedlund (, p. Carbonatites and carbonatites and carbonatites Article (PDF Available) in The Canadian Mineralogist 43(6) December with 4, Reads How we measure 'reads'.
A model of mantle metasomatism by carbonated alkaline melts: trace element and isotopic compositions of mantle source regions of carbonatite and other continental igneous rocks. In: K. Bell (Ed), Carbonatites, genesis and by: 4. Since the carbonatite family is related both to alkaline petrogenesis and a mantle origin, these associations allow distinction of carbonatites from the large variety of other carbonate rocks.
THE Brent crater (46° 04′ N., 78° 29′ W.) is cut into the Pre-Cambrian gneisses of central Ontario. On the surface the crater is marked by a poorly defined depress ft. in diameter. The Iron Hill, Colorado, carbonatite-alkalic igneous rock complex consists mainly of pyroxenite, uncompahgrite, fenite and nepheline syenite, and carbonatite.
The study area has been explored intermittently for several decades for thorium, niobium, rare earth elements, titanium, and by: It has been interpreted as vertical flow band- The Aley Creek area is underlain by Cambrian to Silu- ing, a primary igneous texture (Mader, ) as is observedrian carbonate andclastic rocks of the Kechika, Skoki and in many other carbonatite complexes (e.g., Oka).Road River groups (Thompson, ; Pride, ).
Crystallization of carbonate minerals in carbonatite causes separation of these alkalis together with a hydrothermal solution, which fenitize the surrounding country rocks. If the alkalic carbonatite magma erupts from a volcano (volcano Oldoinyo Lengai in Africa), it crystallizes into alkaline Kâ€“Na carbonates, which are highly water Cited by: 5.
Ferroan calcite carbonatite breccia with clasts of C1 calcite carbonatite and fenite; (F) Example of a road-cut with extensive alteration of Fe-rich rock to hematite, goethite, wad and limonite.
Carbonatites of the world, explored deposits of Nb and REE: Database and grade and tonnage models Book January with Reads How we measure 'reads'.
The assemblage of carbonatites with highly oxidized silicate rocks is typical of many carbonatite occurrences worldwide, at least for those associated with melilititic to nephelinitic silicate rocks. The Loe Shilman carbonatite sheet complex comprises an amphibole sovite which is intruded by a biotite sovite and an ankeritic dolomite carbonatite.
These carbonatites have produced zoned fenites as a result of Na, K and Na+Mg+Fe fenitizing-fluids emanating from the amphibole sovite, biotite sovite and ankeritic dolomite carbonatite : Ihsanullah. Mian. Until the mids, the idea of an igneous rock made of carbonate was accepted by few geologists.
Today, the validity of the idea of carbonatite magma is no longer questioned, because of direct observation of carbonatite lavas capping the Oldoinyo Lengai volcano; experimental work that has produced carbonatite melts during partial melting of peridotite; extensive geological mapping of Author: H.
O’Brien. readers rather than unfamiliar rock names. Alkalic rock nomencla ture is cumbersome, due in large part to the profusion of rock names, consequently as an aid to the reader, the use of less familiar rock names will be avoided.
Those rock terms retained by the author for the Carb Lake Carbonatite Complex and how they are used are given below.
Metasomatism accompanying kimberlite emplacement is a worldwide phenomenon, although infrequently described or recognised. At the Cambrian-aged Murowa and Sese kimberlite clusters located within the Archean Zimbabwe Craton just north of the boundary with the Limpopo Mobile Zone in southern central Zimbabwe, the metasomatism is intense and well exposed and the processes can be readily by: Carbonatite (/ k ɑːr ˈ b ɒ n ə t aɪ t /) is a type of intrusive or extrusive igneous rock defined by mineralogic composition consisting of greater than 50% carbonate minerals.
Carbonatites may be confused with marble and may require geochemical y: carbonate minerals, (> 50%). The Sokli fenite halo is developed up to 3 km from the carbonatite core and is manifested by the development of alkali feldspar, pyroxene (aegirine and aegirine-augite), alkali amphibole (arfvedsonite and eckermannite), and phlogopite, giving the rock a greenish cast (Vartiainen and Woolley, ).
Levels of fenitization increase toward the. The fenite rocks form a ring shape around three different carbonatite units (søvites, rauhaugites, and rødbergites) and few outcrops of the ultramafic, mantle-derived damtjernite rocks (Mitchell and Brunfelt, ). The magma of the second intrusion was magnesium-rich carbonatite that caused a metamorphosis and metasomatism of ankerite Cited by: 2.
The Cambro-Proterozoic calciocarbonatite near Fen, Norway is particularly Nb-rich in breccia zones, and pyroxene fenite takes the place of amphibole fenite at Meech Lake.
In contrast to a relatively anorogenic regime during carbonatite petrogenesis at Fen, metamorphism has obscured pyrochlore zonation and enhanced amphibole growth at Meech by: 2.Other older carbonatite volcanoes are located in the same region, including Homa Mountain.
Economic importance Carbonatites may contain economic or anomalous concentrations of rare earth elements, phosphorus, niobium - tantalum, uranium, thorium, copper, iron, titanium, vanadium, barium, fluorine, zirconium, and other rare or.AbstractCarbonatites are carbonate-rich rocks of igneous origin.
They form the.