Hello Teevee
I received the following from HB.
The overall picture at Yamba has not changed. I am presently having the airborne relooked at, particularly the EM to see if we can define anything new, especially to locate the source of the Gooseneck train.
Geoscience Forum-- I do not know at this stage who will be there but we will be represented by somebody.
I see the question about the 7th hole that does not match with the Winspear map. The 7th hole lies within P20 on Winspears map which is about 1km from our boundary. This hole would have started after P19 hole and at the same
time that approval was given by the board for the takeover. This is why no news on P20 or its location.
Hope that helps.
Also I can't recall if I posted the following research a few weeks ago, but I don't think I did. Hope you find it interesting.
Geological Survey of CanadaOpen File 3228Searching for diamonds in CanadaEdited by A.N. LeCheminant, D.G. Richardson, R.N.W. DiLabio and K.A. Richardson1996 Available at the GSC Bookstore
Table of Contents
Foreword
A.N. Lecheminant, D.G. Richardson, R.N.W. DiLabio and K.A. Richardson
Part 1: Geology, petrology and geotectonic controls
Introduction
A.N. Lecheminant and B.A. Kjarsgaard
Precambrian Shield of Canada
Archean cratons
J.A. Percival
Paleoproterozoic Orogenic Belts
M.R. St-Onge and S. B. Lucas.
The Mesoproterozoic Grenville orogen
A. Davidson
Kimberlites and methods used for their study
Kimberlites
B.A. Kjarsgaard
Isotopic age determinations of kimberlites and related rocks: Methods and applications
W.J. Davis, R.R. Parrish, J.C. Roddick, and L.M. Heaman
Fossils from diamondiferous kimberlites at Lac de Gras, N.W.T.: Age and paleogeography
W.W. Nassichuk and D.J. McIntyre
Tools of investigation: The electron microprobe and scanning electron microscope
J.A.R. Stirling and G.J. Pringle
Slave Province kimberlites, N.W.T.
B.A. Kjarsgaard
Somerset Island kimberlite field, District of Frankin , N.W.T.
B.A. Kjarsgaard
Prairie kimberlites
B.A. Kjarsgaard
Kimberlites in the vicinity of Kirkland Lake and Lake Temiscaming, Ontario and Quebec
D.J. Schulze
Lamproites and other alkaline rocks
Lamproites
T.D. Peterson.
The relation of diamond-bearing rocks to other alkaline rocks
K L Currie
Diatreme breccias in the Cordillera
O.J. Ijewliw and J. Pell
Ultrapotassic rocks of the Dubawnt Supergroup, District of Keewatin
T. D. Peterson and A.N. LeCheminant
The diamondiferous Akluilâk lamprophyre dike, Gibson Lake area, N.W.T.
N.D. MacRae, A.E. Armitage, A.R. Miller, J.C. Roddick, A.L. Jones, and M.P. Mudry.
Lamproite dykes of southeast Baffin Island
D.D. Hogarth and T. D. Peterson
Sweet Grass minettes, Alberta
B.A. Kjarsgaard and W.J. Davis
Superior Province lamprophyres
R. A. Stern
Alnoïtes and related rocks, Monteregian Hills alkaline igneous province, Quebec
J. H. Bédard and A.N. LeCheminant
Lamprophyric dykes in Labrador. Summary of occurrences and their significance to diamond exploration
B. Ryan
Xenoliths and xenocrysts
Ultramafic xenoliths and xenocrysts in kimberlite and alnoïtes: Windows to the upper mantle
D.J. Schulze
Geochronological and pathogenetic studies of lower crustal xenoliths entrained in kimberlites and alkaline rocks
W.J. Davis and D. Moser
Insights on minette emplacement and the lithosphere underlying the southwest Grenville Province of Quebec at 1.08 Ga
L. Corriveau, D. Morin, M. Tellier, Y. Amelin, and O. van Breemen
Fossils as indicators of thermal alteration associated with kimberlites
A. D. McCracken, D. K. Armstrong, and D.C. McGregor
Thermal data from petrographic analysis of organic matter in kimberlite pipes, Lac de Gras, N.W.T.
L.D. Stasiuk and W.W. Nassichuk.
Geotectonic controls
Thermal evolution of the lithosphere in the central Slave Province: Implications for diamond genesis
P.H. Thompson, A.S. Judge, and T.J. Lewis
Mafic magnetism, mantle roots, and kimberlites in the Slave craton
A.N. Lecheminant, L.M. Herman, O. van Breemen, R.E. Ernst, W.R.A. Baragar and K.L. Buchan
Other diamond host rocks
Diamonds associated with ultramafic complexes and derived placers
A.N. Lecheminant and J. H. Bédard
Diamonds in ultrahigh-pressure metamorphic rocks
R.G. Berman
Impact diamonds
R.A.F. Grieve and V. L. Masaitis
Part 2: Diamond exploration in glaciated terrain
Introduction
R.N.W. DiLabio
Kimberlite indicator minerals in glacial deposits, Lac de Gras area, N.W.T.
B.C. Ward, L.A. Dredge, D.E. Kerr, and I.M. Kjarsgaard
Morphology and kelyphite preservation on glacially transported pyrope grains
L.A. Dredge, B.C. Ward, and D.E. Kerr.
Kimberlite indicator mineral and soil geochemical reconnaissance of the Canadian Prairie region
R.G. Garrett and L.H. Thorleifson
Geochemistry and indicator mineralogy of drift over kimberlite, Kirkland Lake, Ontario
M.B. McClenaghan
Biogeochemical studies of kimberlites
C.E. Dunn and M.B. McClenaghan
Part 3: Geophysical exploration and Geographic Information System (GIS) applications
Introduction
K.A. Richardson
The National Aeromagnetic Data Base
P. Keating, J. Tod, and R. Dumont
Kimberlites and aeromagnetics
P. Keating
Geophysical characteristics of Canadian kimberlites
C.J. Mwenifumbo, J.A.M. Hunter, and P.G. Killeen
Physical characteristics of Canadian kimberlites
T.J. Kasube and B.A. Kjarsgaard
Geophysical measurements for lithospheric parameters
A.G. Jones, D.W. Eaton, D. White, M. Bostock, M. Mareschal, and J.F. Cassidy
Seismic reflection survey of a kimberlite intrusion in the Fort à la Corne District, Saskatchewan
D. J. Gendzwill and S.D. Matieshin
Application of thermal imagery from LANDSAT data to locate kimberlites, Lac de Gras area, District of Mackenzic, N.W.T.
A.N. Rencz, C. Bowie and B.C. Ward
GIS activities related to diamond research and exploration, Lac de Gras area, District of Mackenzie, N.W.T.
C. Bowie, B.A. Kjarsgaard, H.J. Broome, and A.N. Rencz.
Appendix A: Contributors Names and Addresses
Foreword
A.N. Lecheminant, D.G. Richardson, R.N.W. DiLabio, and K.A. Richardson
Diamonds! "The Great Canadian Diamond Rush" north of Yellowknife (McNellis, 1993) revives for this generation a sense of the excitement and dreams of the Klondikers of the last century. Until recently, most Canadians thought of diamonds only as exotic and treasured jewels, appreciated for their rarity and brilliance, but of little direct economic interest to Canada. Prospective areas of the Canadian Shield were largely ignored, even though for almost thirty years geologists have known that diamond deposits are closely associated with the old stable nuclei of continents (cratons). Diamonds originate in the Earth's mantle at depths >150 km and most are stored in distinctive source rocks that make up part of the stable mantle root beneath Archean (> 2500 million years old) and Proterozoic (2500 to 570 million years old) cratons. The two most important diamond source rocks are peridotite and eclogite, and each rock type contains a characteristic suite of minerals that are key indicators for diamond exploration. Primary diamond deposits occur where kimberlite and lamproite magmas erupted, since these deep-seated magmas provide a medium to sample diamond-bearing source rocks and transport diamonds and associated indicator minerals to surface. Economic diamond-producing gelds occur on most Archean cratons worldwide, with the notable exception of Archean cratons in Canada, such as the Superior, Slave and Nain provinces. However, intense exploration activity throughout Canada, since the late 1980s, has located numerous diamond-bearing kimberlite in the Slave Province near Lac de Gras, north of Yellowknife, and additional kimberlites have been discovered in Alberta, Saskatchewan, Manitoba, Ontario, and Quebec.
Surprisingly, before the 1990s, diamonds were almost absent from Canadian folklore and mineral history. Jacques Cartier's men mined "diamonds" at the mouth of Rivière du Cap-Rouge in 1541, but their treasure turned out to be worthless quartz. This episode gave Quebec's Cap Diamant its name, and the story survives in the saying "faux comme des diamants du Canada". Early this century, reports by officers of the Geological Survey of Canada suggested microdiamonds were recovered from chromitite lenses in the Tulameen complex, British Columbia Camsell, 1911) and from chromite ore mined at Black Lake, Quebec (Dresser, 1913). Although the Tulameen "microdiamonds" were later shown to be synthetic periclase formed by laboratory heating of the rock samples, recent work in Morocco, Spain, and Tibet has documented the association of diamonds with similar mechanically emplaced untramafic rocks (Davies et al., 1993; Baio et al., 1993).
J.J. Brummer (1978) culled meagre data from a wide range of source's to provide a remarkably comprehensive overview of the early history of "Diamonds in Canada". He noted that W.H. Hobbs (1899) first raised the possibility of diamond sources in Canada, based on discoveries of diamonds in glacial drift south of the Great Lakes. Although a 33 carat alluvial diamond was discovered near Peterborough, Ontario before 1920, and some finds were reported in Saskatchewan and Quebec in the late 1940s and early 1950s, significant diamond exploration did not begin in Canada until the 1960s, when indicator mineral surveys were conducted in Ontario by mining companies, the Ontario Department of Mines and the Geological Survey of Canada. Satterly (1949) recognized the first Canadian kimberlites in Michaud Township, north of Kirkland Lake and, by the late 1960s, several other kimberlites and a few diamonds had been discovered. The history of recent diamond discoveries in Canada has yet to be written, but many of he most enthusiastic extortionists, active over more than 25 years, now find themselves drawn to the Barrenlands near LaC de Gras, hoping to be among the first to bring Canadian diamonds to world markets.
Discovery of world-class diamond deposits depends on determined mineral exploration aided by a reliable and comprehensive geological database. Papers in this volume provide a snapshot of the spectrum of geoscience information available to assist diamond exploration in Canada. Maps provide elegant and ready access to data acquired and interpreted by the Geological Survey of Canada (GSC), Provincial Surveys, and University-based researchers. Mapping by the GSC now integrates traditional geological, geophysical, geochemical, and surficial surveys with specialized Geographic Information System (GlS) techniques, several of which have important applications to diamond exploration. This volume provides background for several of the national databases maintained by the GSC, as well as summaries of specific areas of diamond-related research and short reviews of GSC research relevant to diamond exploration. Readers seeking further information are encouraged to contact the authors, whose addresses are listed at the end of the volume. In addition, the GSC has published a bulletin that reviews the use of various indicator minerals and mineral assemblages as important aids in diamond exploration in Canada (Fipke et al., 1995).
Reports contained in this volume were submitted during the period December 1994-June 1995, and have been reviewed by GSC staff, but have not undergone rigorous scientific review. Thanks are extended to the many scientists who contributed to this volume, and to OJ. Ijewliw, R. Lacroix, D. Paul, S. Scully, M. Sigouin, K. Venance and T. West, all of the GSC, for assistance with figure production. W.C. Morgan undertook the technical editing. Preliminary corrections, compilation and layout were completed by A. Anand with assistance from N. Devine, C. Bélanger, L. O'Neill and C. Plant (all of the GSC). Printing of this volume was funded by the GSC's Mineral Resources and Continental Geoscience divisions.
Sadly, two scientist who contributed to this volume died in 1995. On February 23, Chris Roddick died in a skiing accident in Vermont, tragically cutting short a scientific career in isotope geoscience characterized by imagination, enthusiasm, and curiosity. His contribution to the Geochronology Laboratory of the GSC is commemorated in the introduction to the 1995 Radiogenic Age and Isotope Studies report ( Parrish, 1996). Chris leaves a rich legacy and is deeply missed. Marianne Mareschal, a leading scientist in Canada's LITHOPROBE project, passed away on July 11, 1995, after a long and courageous struggle with cancer. She was a member of the organizing committee for the Precambrian conference in Montreal and a dedication to her is published in the Program and Abstracts volume for Precambrian '95'. Her kindness and energy touched all whom she met and she will be missed by many. Most of all, her direction and vision in combining seismic and electromagnetic experiments for the study of cratonic root:, which was her last major research effort, will bear fruit for many years to come. A foundation, established in her name, will be used to provide a student bursary in geophysics at the École Polytechnique de Montréal. Contributions should be forwarded to: Fonds Marianne Mareschal, Départment de génie minéral, École Polytechnique de Montréal, Montréal, CP 6079, Succ "centre ville" Montréal H3C 3A7, Canada.
References
Bai, W.-J., Zhou, M.-F., and Robinson, P.T.
1993: Possibly diamond-bearing mantle peritonitis and coliform chromiums in the Luobusa and Donqiao ophiolites, Tibet,
Canadian Journal of Earth Sciences, v. 30, p. 1650-1659.
Brummer, J.J.
1978: Diamonds in Canada.
Canadian Mining and Metallurgical Bulletin, October, 1978, p. 64-79.
Camsell C.
1911: A new diamond locality in the Tulameen district British Columbia;
Economic Geology, v. 6, p. 604-611.
Davies G.R., Nixon, P.H., Pearson, D.G., and Obata M.
1993: Tectonic implications of graphitized diamonds from the Ronda peridotite massif, southern Spain;
Geology, v. 21, p. 471-474.
Dresser, J.A.
1913: Preliminary report on the serpentine and associated rock of southern Quebec;
Canadian Department of Mines, Memoir 22, p. 82-84.
Fipke, C.E., Gurney, JJ., and Moore, R.O.
1995: Diamond exploration techniques emphasizing indicator mineral geochemistry and Canadian examples;
Geological Survey of Canada Bulletin 423, 86 p.
Hobbs W.H.
1899: The diamonds fields of the Great Lakes;
Journal of Geology, v.7, p. 375-388.
McNellis M.
1993: The Great Canadian Diamond Rush;
The Financial Post Magazine, October 1993, p. 18-36.
Parrish, R.R.
1996: Radiogenic Age and Isotopic Studies: Report 9 - Introduction; in Radiogenic Age and Isotopie Studies: Report 9.,
Geological Survey of Canada Current Research 1995-F, p. v-vi.
Satterly, J.
1949: Geology of the Michaud Township; Ontario
Departnent of Mines. Annual Report v. LVII, part IV, 1948.
Part 1: Geology, petrology and geotectonic controls
Introduction
A.N. Lecheminant and B.A. Kjarsgaard
Diamonds, though extremely rare, are widely distributed and have been discovered in unconsolidated and consolidated sediments, diverse igneous rocks of upper mantle origin, mantle xenoliths, ophiolites, ultra high pressure metamorphic rocks, meteorites and impact structures. Of these, only diamond-bearing kimberlite and lamproite, and their derived placer and paleoplacer deposits, have proven to be economically viable. Before 1960, >80% of all diamonds were recovered from secondary deposits; by 1990, increased diamond production from kimberlite and lamproite pipes reduced this to <25% (Levinson et a1., 1992). Nearly two thirds of present world production by weight comes from only five pipes located in Australia, Botswana, Russia, and South Africa (Boucher, 1995).
Kimberlites occur in continental shield areas, and economic kimberlite are associated with the stable parts of Archean (>2.5 Ga) cratons. Lamproites, on the other hand, typically intrude demobilized Archean cratons or Proterozoic orogenic belts. For example, the Argyle deposit in Australia, the world's most productive diamond mine, occurs in a lamproite pipe within the Proterozoic Halls Creek mobile belt. Locations of diamond-bearing rocks in Canada are shown in Figure 1, along with the locations of many commercially important kimberlites and lamproites. This figure also shows the worldwide distribution of Archean and Proterozoic cratons based on a generalized geological map of the world, now available digitally (Kirkham et al., 1994, 1995).
Figure 1. Locations of diamond-bearing kimberlites in Canada, and worldwide locations of kimberlite clusters and primary diamond producers and past producers. The distribution of Archean and Proterozoic rocks is derived from a digital geological map of the world compiled by Kirkham et al. (1994, 1995).
In Canada, Archean and Proterozoic structural provinces are well known and geological maps provide a rigorous framework for examining the distribution of kimberlites and for testing models of diamond formation. Precambrian rocks of the North American craton have been subdivided into numerous crustal domains with distinctive ages, structural trends, and geophysical characteristics (Stockwell, 1961; Hoffman, 1989). Archean cratons, which underlie a large part of the exposed Canadian Shield, were welded together by Proterozoic orogeny, many of which continue in the sub-surface beneath adjacent Phanerozoic sedimentary cover (e.g. Trans-Hudson orogen - Fig. 1: Percival, 1996). The contrast between exposed Archean fields and adjacent thinly covered Proterozoic orogeny is one characteristic that hints at significant differences between Archean and Proterozoic processes of lithosphere formation and preservation (Durrheim and Mooney, 1994). The continental lithosphere, made up of the crust and part of the upper mantle, is a strong persistent layer relative to the underlying convecting asthenosphere. Seismological studies indicate that the lithosphere is thicker beneath Archean cratons, and contains regions of cool lithospheric mantle within the diamond stability field (i.e. depths >150 km; Durrheim and Mooney, 1994; Grand, 1994; Polet and Anderson, 1995). The first three papers in this volume provide a brief summary of the complex history of Archean cratons and flanking Proterozoic orogeny in Canada, and contain key references to maps and reports on the Precambrian geology of Canada.
In this volume, the geology of kimberlites and lamproites is covered in summary papers, accompanied by short papers on analytical methods and specific kimberlite fields in Canada. For comprehensive summaries of the petrology of kimberlites, lamproites, and lamprophyres the reader is referred to books by Mitchell (1986; 1995), Mitchell and Bergman (1991) and Rock (1991). Extensive additional information can be obtained from the Proceedings Volumes for the five International Kimberlite Conferences published up to 1994, and in the Abstracts Volume for the Sixth International Kimberlite Conference (*Proceeding Volumes, 1979-1994; Abstracts Volume, 1995).
Kimberlites resemble and can be spatially associated with other alkaline rocks, some of which originate at depths >150 km, and are therefore potentially diamond-bearing. Diamonds have been reportedly recovered from lamprophyre diademe breccias in the Canadian Cordillera, from lamprophyre dykes and diatremes south of Baker Lake, N.W.T., and from the Ile Bizard diatreme breccia in Quebec. These diamond-bearing rocks and several other alkaline intrusions in Canada are described in a series of short Papers.
Kimberlite, lamproite and other alkaline magmas originate as small volume melts of deep-seated origin. The triggering mechanism for generation of kimberlites is unknown, and correlation of kimberlite magnetism with mantle plumes, with flexure of the lithosphere, or with specific plate tectonic processes has not been adequately demonstrated worldwide (Mitchell, 1986; Haggerty, 1994). Furthermore, no viable theory has accurately predicted the location of kimberlite fields within a craton, although many fields have preferred orientations that suggest pre-existing structural controls are important. Lamproites and lamptophyres originate from shallower sources than kimberlites, and magmas are derived from partial melting of subcontinental lithospheric mantle that has a long and complex metasomatic history (Mitchell and Bergman, 1991). Kimberlites have chemical and isotopic signatures suggesting they originated from sources in the asthenosphere, although the magmas can be modified by interaction with metasomatized regions in the overlying continental lithosphere (Haggerty, 1994; Ringwood et al., 1992; Tainton and McKenzie, 1994).
Much of our knowledge of the deep crust and upper mantle is inferred indirectly from geophysical methods. Mantle and crustal xenoliths and xenocrysts transported to surface by deep-seated magmas are actual samples of the mantle and deep crust, and can be used to test the geophysical models and study the lithosphere beneath Canada. Pilot studies provide a glimpse of the rich potential provided by xenolith suites in kimberlites and related rocks, discovered as a result of the continued success of diamond exploration across Canada. Age determinations on diamond inclusions and on primary minerals in diamond-bearing kimberlites indicate that diamonds are xenocrysts in the kimberlite magma. Kimberlites act only as transportation agents, bringing diamonds and mantle xenoliths from within the diamond stability field to the surface. In general, diamonds are disserllinatead throughout the kimberlite host, although xenoliths of diamond-bearing source rocks, such as eclogite and rare peridotite, are known.
Of unique interest in some kimberlites are down-dropped blocks of country rocks. Emplacement processes involved in near-surface diadems and crater formation produced kimberlites containing numerous country rock fragments, some of which are the only preserved evidence for stratigraphic units that have now been removed by erosion. Papers on fossil-bearing xenoliths recovered from Lac de Gras kimberlite summarize new and surprising information about the age and geological setting of pipe formation.
Mafic magmatic events generated by mantle plumes and rifting are potentially destructive to the cool diamond-bearing roots of continental lithosphere (Helmstaedt and Gurney, 1994). Large-scale mafic dyke swarms are a surface record of these thermal events, and their age, source, and distribution provide evidence about possible selective destruction or preservation of diamond-bearing mantle roots.
Conceptually, diamond formation and preservation is linked to areas of thick and cool continental lithosphere which extend into the diamond stability field in the mantle (depths >150 km). However, diamonds apparently unrelated to such old cratoric nuclei have been discovered associated with Phanerozoic collisions orogeny, such as in New South Wales, Eastern Australia (Barron et a1., 1994), and diamonds occur in other off-craton localities. Diamonds have been recovered from alluvial sources proximal to technically emplaced ultramafic massifs in collisions orogeny, and microscopic diamonds have been discovered in situ in fault-bounded ultra high pressure metamorphic massifs. In addition, microscopic diamonds occur in carbon-bearing rocks at impact sites worldwide and, to date, no systematic search has been made of the twenty-six known impact structures in Canada. Three papers in this volume summarize these associations and outline the Canadian context. Although none of these unusual diamond occurrences worldwide has proven to be of major economic importance, interest is piqued by rocks from ophiolites, such as the Beni Bousera ult.ramafic massif, that has been interpreted to have initially contained up to 15% diamond (Nixon et a1., 1991).
References
Barrow, L.M., LishmunG S.R., Oakes, G.M., and Barrow B.J.
1994: Subduction diamonds in New South Wales: implications for exploration in eastern Australia;
Geological Survey of New South Wales, Quarterly Notes, v. 94, p. 1-23.
Boucher, M.A.
1995: Diamonds;
1994 Canadian Minerals Yearbook, Chapter 20, p. 20.1-20.12.
Durrheim, R.J. and Mooney, W.D.
1994: Evolution of the Precambrian lithosphere; seismological and geochemical constraints;
Journal of Geophysical Research, v. 99, p. 15359-15374.
Grand, S.P.
1994: Mantle shear structure beneath the Americas and surrounding oceans;
Journal of Geophysical Research. v. 99, p. 11591-11621.
Haggerty, S.E.
1994: Superkimberlites: a geodynamic diamond window to the Earth's core;
Earth and Planetary Science Letters, v. 122, p. 57-69.
Helmstaedt, H.H. and Gurney, J.J.
1994: Geotetonic controls on the formation of diamonds and their kimberlitic and lamproitic host rocks: Applications to diamond exploration;
Proceedings of the Fifth Intemational Kimberlite Conference,
Diamonds: Characterization, Genesis and Exploration,
H.O.A. Meyer and O.H. Leonardos (ed.), v. 2, p. 236-250.
Hoffman, P.F.
1989: Precambrian geology and tectonic history of North America;
The Gclogy of North America - an overview,
A. W. Bally and A. R. Palmer (ed.);
Geological Society of America The Geology of North America v. A, p. 447 - 511.
Kirkham, R.V., Chorlton, L.B., and Carriere, J.J.
1994: Generalized geology of the World (1:35 000 000);
Geological Survey of Canadaa Open File 2915a (paper map).
1995: Generalized geology of the World and linked databases;
Geological Survey of Canndn. Open File 2915d (CD-ROM).
Levinsow A.A., Gurney, J.J., and Kirkley, M.B.
1992: Diamond sources and production: past, present, and future;
Gems and Gemology, v. 28, p. 234-254.
Mitchell, R.H.
1986: Kimberlites - Mineralogy, Geochemistry, and Petrology;
Plenum Press, New York, 442 p.
1995: Kimberlites, Orangeites and Relate Rocks;
Plenum Press, New York, 410p.
Mitchell, R.H. and Bergman, S.C.
1991: Petrology of Iamproites;
Plenum Press, New York, 447 p.
Nixon, P.H., Pearson, D.G., and Davies, G.R.
1991: Diamonds: the oceanic lithosphere connection with special reference to Beni Bousera North Morocco,
Ophiolite Genesis and Evolution of the Oceanic Lithosphere,
TJ. Peters, A. Nicolas and R.G. Coleman (ed.);
Kluwer Academic Publisbers, p. 275-289.
Percival, J.A.
1996: Archean Cratons;
Searching for Diamonds in Canada;
A.N. LeCheminant, D.G. Richardson, R.N.W. DiLabio and K.A. Richardson (ed.);
Geological Survey of Canada, Open File 3228, p. 11-15.
Polet, J. and Anderson, D.L.
1995: Depth extent of cratons as infered from tomographic studies;
Geology, v. 23, p. 205-208.
Ringwood, A.E., Kesson, S.E., Hibberson, W., and Ware, N.
1992: Origin of kimberlites and related magmas;
Earth and Planetary Science lctters, v. 1 13. p. 521-538.
Rock, N.M.S.
1991: Lamprophyres;
Van Nostrand Reinhold, New York, 285 p.
Stockwell, C.H.
1961: structural provinces, orogenies, and time classificadon of rocks of the Canadian Precambrian Shield;
Age Determinations by the Geological Survey of Canada, J.A Lowden (ed.);
Geological Survey of Canada; Paper 61-17, p. 108-118.
Tainton, K.M. and McKenzie D.
1994: The generation of kimberlites, lampmites, and their source rocks;
Journal of Petrology, v. 35, p. 787-817.
* Proceedings Volumes for the First five international Kimberlite Conferences and Abstracts Volume for the Sixth International Kimberlite Conference:
· Proceedings of the First International Kimberlite Conference.
Physics and Chemistry of the Earth, v. 9.
· Proceedings of the Second International Kimberlite Conference,
v. 1 . Kimberlites, Diatremes and Diamonds: their Geology, Petrology and Geochemistry, H.O.A. Meyer and F.R. Boyd (ed.);
American Geophysical Union, Washington D.C., 1979.
· Proceedings of the Second International Kimberlite Conference,
v. 2. The Mantle Sample: Inclusions in Kimberlites and Other Volcanics, H.O.A. Meyer and F.R. Boyd (ed.);
American Geophpical Union, Washington D.C., 1979.
· Proceedings of the Third International Kimberlite Conference,
v. 1. Kimberlites I: Kimberlites and Related Rocks, J. Kornprobst (ed.);
Developments in Petrology 11A, Elsevier, Amsterdam, 1984.
· Proceedings of the Third International Kimberlite Conference,
v. 2. Kimberltes II: The mantle and Crust-Mantle Relationships, J. Kornprobst (ed.);
Developments in Petrology 11A, Elsevier, Amsterdam, 1984.
· Proceedings of the Fourth International Kimberlite Conference,
v. 1. Kimberlites and Related Rocks: Their Composition, Occurence, Origin and Emplacement, J. Ross (ed.);
Geological Society of Autralia Special Publication14,
Blackwell Scientific Publications, Oxford, 1989.
· Proceedings of the Fourth International Kimberlite Conference,
v. 2. Kimberlites and Related Rocks: Their Mantle/Crust Setting, Diamonds and Diamond Exploration, J. Ross (ed.)
Geological Society of Autralia Special Publication14,
Blackwell Scientific Publications, Oxford, 1989.
· Proceedings of the Fifth International Kimberlite Conference,
v. 1. Kimberlites, Related Rocks and Mantle Xenoliths, H.O.A. Meyer and O.H. Leonardos (ed.);
Companhia de Pesquisa de Recuros Minerals - Special Publication 1/B Jan/94, Brazilia 1994.
· Proceedings of the Fifth International Kimberlite Conference,
v. 2. Diamonds: Characterization, Genesis and Exploration, H.O.A. Meyer and O.H. Leonardos (ed.);
Companhia de Pesquisa de Recuros Minerals - Special Publication 1/B Jan/94, Brazilia 1994.
· Extended Abstracts Volume - Sixth International Kimberlite Conference, Novosibirsk, Russia August 1995, 707p.
As the file is too large, I'll post the remainder in a follow up.
Regards |
