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Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/171517
Description: Partial-melting experiments, at 1.0-3.0 GPa and 900-1100 degrees C, were conducted on two greenstones of Early Archaean (Hadean) age from the Nuvvuagittuq Complex of northern Quebec. For comparison, s ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170611
Description: Trace-element patterns of high-Mg carbonatitic high- density fluids (HDFs) trapped in Siberian fibrous diamonds are similar to those of Group I kimberlites, but are slightly more fractionated. The pat ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170614
Description: Archean cratons are underlain by highly depleted subcontinental lithospheric mantle (SCLM). However, xenolith and xenocryst data [1; references therein] suggest that Archean SCLM has been extensively ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170623
Description: A voluminous Early Paleozoic sequence of quartz-rich sandstones was deposited in northern Gondwana following its assembly during the Neoproterozoic-Cambrian Pan-African Orogeny. Field evidence for the ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170619
Description: In the last decade there have been significant advances made in the in situ measurement of Hf isotopes in zircon and the application of the Lu-Hf isotopic system to help constrain the sources that con ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170634
Description: Mixed-habit diamonds are a relatively understudied subset of samples, considering the amount of research that has been carried out on these vessels from the mantle. They exhibit periods of growth duri ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170629
Description: Ocean Island Basalts (OIB) erupted in the vincinity of Mid-Ocean Ridges (MOR) provide important information on melting processes, melt movement and composition of the Earth's mantle. In particular the ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170638
Description: Recent studies have shown that volumes of ancient depleted material can survive in the convecting asthenospheric mantle for long periods so that the use of Os model ages of mantle xenoliths to constra ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170952
Description: New Sr-Nd, Hf and Pb isotope data are presented for a representative suite of 21 samples of plutonic and volcanic rocks (D (sub 3) to C (sub 1) ) from the giant Oyu Tolgoi porphyry Cu-Au district in t ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170956
Description: High-temperature crystal-plastic deformation of olivine is an inevitable consequence of asthenospheric mantle flow. In this environment olivine commonly yields by dislocation creep to form dislocation ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170959
Description: The preserved Precambrian crustal record is strongly episodic, and observation that has been attributed to preservational effects or episodic crustal production. These age peaks are associated with ju ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/168194
Description: Groundwaters often exhibit ( (super 234) U/ (super 238) U) activity ratios greater than one as a result of fractionation between (super 234) U and (super 238) U nuclides during rock/water interactions ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/170962
Description: About 300 zircon grains have been recovered from the kimberlite concentrate of the Nyurbinskaya pipe with the aim of finding mantle zircons that would allow estimation of the age of kimberlite emplace ... More