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Chicken Park Kimberlite

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Journal Article
Published: 01 January 2001
Rocky Mountain Geology (2001) 36 (1): 1–12.
... of these bodies occurred during a discrete interval of ultramafic magmatism spanning Early to Late Devonian time. However, new geochronologic data for two kimberlite bodies (Chicken Park and Green Mountain kimberlites) support a Neoproterozoic emplacement age for these bodies. 40 Ar/ 39 Ar analysis of fine...
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Journal Article
Published: 01 August 2000
The Canadian Mineralogist (2000) 38 (4): 975–994.
... to the replacement of TiO 2 by pyrite, as observed in sulfide-rich kimberlites such as Peuyuk C ( Fig. 3G ). In some occurrences, e.g. , Tunraq (Nunavut) and Chicken Park (Colorado), reaction-induced rims are composed entirely of ilmenite, and lack TiO 2 , titanite or other intermediate products of perovskite...
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Journal Article
Published: 01 January 1998
Rocky Mountain Geology (1998) 33 (2): 293–304.
... ). However, new paleomagnetic and 40 Ar/ 39 Ar data ( Lester and Larson, 1996 ) from a kimberlite dike at Chicken Park and the Green Mountain diatreme ( Fig. 1b ), and a Sm-Nd mineral isochron from the latter (Funk, Stern, and Farmer, unpublished data, University of Colorado), indicate that these two...
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Journal Article
Published: 01 September 2007
South African Journal of Geology (2007) 110 (2-3): 367–392.
... (∼180 Ma) is not readily detected; (iii) the two main regional episodes of accelerated exhumation and coastal sediment accumulation are near synchronous with two regional ‘spikes’ of kimberlite intrusions: >450 kimberlites at ∼90 Ma, and >200 kimberlites at ∼120 Ma. Southern Africa is underlain...
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Image
Characteristic alteration patterns of perovskite in <b>kimberlites</b>. False-colo...
Published: 01 August 2000
minerals are chromite (yellow) rimmed by MUM spinel (purple), and apatite (blue). Chicken Park, Colorado. (J) Incipient replacement of perovskite (green) by titaniferous magnetite (red). Blue is apatite. Premier mine, South Africa. (K) Complex pseudomorphs of magnetite (green to red) after perovskite (blue
Image
Characteristic alteration patterns of perovskite in <b>kimberlites</b>. False-colo...
Published: 01 August 2000
minerals are chromite (yellow) rimmed by MUM spinel (purple), and apatite (blue). Chicken Park, Colorado. (J) Incipient replacement of perovskite (green) by titaniferous magnetite (red). Blue is apatite. Premier mine, South Africa. (K) Complex pseudomorphs of magnetite (green to red) after perovskite (blue
Journal Article
Published: 01 August 2011
American Mineralogist (2011) 96 (8-9): 1215–1227.
... Park) is the only one containing xenoliths with fresh, unserpentinized olivine and orthopyroxene ( Eggler et al. 1987 ). For a long time, the State Line kimberlites have been described as Devonian in age, although recent 40 Ar/ 39 Ar dating of groundmass phlogopite from Chicken Park suggests...
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Journal Article
Published: 01 February 2007
Mineralogical Magazine (2007) 71 (1): 113–119.
... ...”. He reported that he found rather primitive facilities for crystallography compared with those at his training grounds in Cambridge University, so he had to build his own X-ray generator from miscellaneous old equipment, chicken wire, and a cocoa tin at a cost of $2. When asked why he had such a fine...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 March 2013
Economic Geology (2013) 108 (2): 355–364.
..., 2000 ) and lateritic weathering ( Summons et al., 1981 ; Friedrich, 1984 ); (3) Ru is compatible in chromite (e.g., Puchtel and Humayun, 2001 ; Fiorentini et al., 2004 ; Righter et al., 2004 ; Locmelis et al., 2011 ; Brenan et al., 2012 ; Pagé et al., 2012 ; Park et al., 2012 ); (4) Ru...
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Journal Article
Journal: SEG Discovery
Published: 01 October 1997
SEG Discovery (1997) (31): 1–52.
... & Associates 42 Park, Gerald M. 39 Phelps Dodge 36 Pincock, Allen & Holt 38 ProTrans 25 Recurses del Carlbe S.A. 35 SAAB 45 Teck Corporation 35 Thoms, John A. 40 XRAL 44 Zonge Engineering & Research -1p/fl Pt/bJ1d 9tzt' &t/ gg7 .. 1 .. oo,,ooo,o , .. 000uu,,oo+oo , -- $25,000-50,000 CYPRUS-AMAX...
Journal Article
Journal: SEG Discovery
Published: 01 October 2000
SEG Discovery (2000) (43): 1–52.
... A, QUEVEDO-ECUACORRIENTE S. A AVENIDA CIRCUNVALACION, SUR Y SUBIDA A TURI, CUENCA, ECUADOR RICHARD H, SILLITOE (SEG 1976)-27 WEST HILL PARK HIGHGATE VILLAGE, LONDON N6 6ND, ENGLAND RICHARD M, SPENCER (SEG 1990)-IAMGOLD ECUADOR S. A.· AVENIDA 6 DE DICIEMBRE, 1529 Y BAQUEDANO, QUITO, ECUADOR (E-MAIL...
Journal Article
Journal: SEG Discovery
Published: 01 April 1997
SEG Discovery (1997) (29): 1–48.
...* ELATNE R. PADOVANI ROBERT HULL PAGE PAN AMERICA MINERALS CORP. GERALD M. PARK HARRY M. PARKER* JOHN R. PARRY* RAMON PATTINSON JOfIN PAYNE, JR.* RODGERS PllALE JOHN PEDERSEN ERICH U. PETERSEN* ULRICH PETERSEN* PAUL H. PICKARD CHARLES C. PINEO Ill DEMETRIUS C. POHL FORREST B. POOL!l NTCOLAE POP TOYN L...
Journal Article
Journal: SEG Discovery
Published: 01 January 1998
SEG Discovery (1998) (32): 1–52.
Journal Article
Journal: SEG Discovery
Published: 01 July 1997
SEG Discovery (1997) (30): 1–56.
Journal Article
Journal: SEG Discovery
Published: 01 July 1998
SEG Discovery (1998) (34): 1–52.
... Exploration Group 30 Anzman, Joseph R. 34 ASARCO 27 Geological Society of America 33 Geological Society of Nevada 36 GeoMax Information 30 Nutt & Associates 32 Park, Gerald M. 36 Phelps Dodge 38 Pincock, Allen & Holt 37 ProTrans 34 Balbach Colorado, Inc. 35 Barber, G. Arthur 29 James GeoAssociates P.C. 7...
Series: GSA Special Papers, GSA Special Papers
Published: 03 October 2017
DOI: 10.1130/2017.2523(03)
EISBN: 9780813795232
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