9 record(s) found with the tag "acasta gneiss" (multi-year projects are grouped):
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Prospecting for Earth’s oldest rocks using geochemical signatures of Pleistocene glacial sediments
Principal Investigator: Bilak, Grayson S
Licenced Year(s): 2017
Summary: For this research the Principal Investigator (PI) propses an innovative combination of quaternary geology, isotope geochemistry, and Precambrian geochronology that will identity previously unmapped outcrops of ancient continental crust in the Acasta Gneiss Complex (AGC). An age range and bedrock composition will be generated for the research area and used to help further the understanding of the p...


Geochemical and isotopic studies of Acasta Gneiss Complex, the oldest terrestrial rock on Earth
Principal Investigator: Lee, Seung-Gu
Licenced Year(s): 2017
Summary: The objective of this project is to collect rock samples from the Acasta Gneiss Complex, the oldest terrestrial rock on Earth, and to find a geochemical proxy which can shed light on the studies of early Earth rare earth element geochemistry and cosmochemistry. The field research will be carried mostly spot to spot based on the published geologic maps of previous researchers. The research team ...


Exploration of the Earliest Crust Forming Events on Earth
Principal Investigator: Reimink, Jesse R
Licenced Year(s): 2016
Summary: This project will use radioactive isotope systems, whole rock isotopic measurements, and isotope data for zircons to investigate the role Hadean (> 4 billion year (Ga) old) crust played in the genesis of the Slave craton of the Northwest Territories, Canada. Data of this nature for rocks from the best-studied locality in the Slave craton, the Acasta Gneiss Complex, show that these circa 3.8-4.02 G...


Examining the Acasta Gneiss Complex: A Broader Scope
Principal Investigator: Belosevic, Mike
Licenced Year(s): 2016 2015
Summary: This study is designed to encompass the following goals: 1) Collect samples from the expanded Acasta Gneiss Complex (AGC) study area; 2) Perform field mapping and general exploration of the expanded study area; 3) Perform age dating and isotopic analysis of the collected samples along with whole-rock geochemistry to compare data with those in the extensively studied AGC body adjacent to the Acasta...


Geology of the Acasta Gneiss Complex: Decoding of early earth evolution
Principal Investigator: Komiya, Tsuyoshi
Licenced Year(s): 2015
Summary: The objectives are to conduct a geological survey and rock sampling in the Acasta Gneiss Complex to investigate evolution of the early earth. The Acasta Gneiss is the oldest rock in the world, and uniquely records the early earth. The Acasta Gneiss has many generations and a complex history including not only the magmatic formation with different ages but also deformations. Comprehensive works on ...


Petrogenesis of the Acasta Gneiss Complex: Ancient Rocks Revisited
Principal Investigator: Reimink, Jesse R
Licenced Year(s): 2014 2013 2012 2011
Summary: The present study aims to obtain information with the following objectives: 1) further describe, sample, and document field relationships and structures present in areas that were sampled and found to be significantly old (>3.8 billion years); 2) explore and sample other units which based on field relationships and mineralogy are likely to be as old or older than previously documented samples; 3) ...


National Museum of the American Indian Cardinal Direction Markers Project
Principal Investigator: Pepper Henry, James
Licenced Year(s): 2003
Summary: The goal of this project is to collect a sample of the Acasta Gneiss from the Slave Craton to be used to represent the peoples and indigenous communities of Canada on the grounds of the Smithsonian Institution's National Museum of the American Indian in...


Thematic structural stratigraphic, and geochronological studies of the Slave structural province.
Principal Investigator: Bleeker, Wouter
Licenced Year(s): 2000 1999 1998 1997 1996 1995 1994
Summary: Map and describe the various rock types and assess their role in the complex geological history of the Slave Province. Fly-in / fly-out camps with small airplanes and small campsites to make daily traverses by boat or foot to study the local rocks. Small samples will be taken of interesting rocks; samples are fist sized....


Geological Mapping of the Avialik River Volcanic Belt
Principal Investigator: Relf, Carolyn
Licenced Year(s): 1994 1993 1992
Summary: In this ongoing study, the researcher will examine the nature of the rocks found in the volcanic belt of the Avialik River area. This work will help to determine the amount of base metals and precious metals found in this belt of rocks. In addition, the movement of rocks (in the past) along a fault will be examined. Geological mapping (field work) will be done in the summer while analyses of the r...


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