A white-coloured cardboard box, marked with hand-written lettering in black ink, contains the following items:
Nine glass containers (~4.8 cm tall) with black plastic tops. The sample containers have paper labels attached to the central part of the glass. The labels are marked in black in and secured by a layer of clear tape. Five of the containers are attached to one inside edge of the box; four are attached to the opposite edge. These contain small amounts of a mineral.
Three larger glass sample containers (~6 cm tall). The sample containers have paper labels attached to the central part of the glass. The labels are marked in black in and secured by a layer of clear tape. Two of the containers are attached to the bottom of the box. These contain small amounts of a mineral. The third is loose inside the box. This is mostly full.
One paper-wrapped sample dish. The sample dish is taped to the bottom inside of the box with clear tape.
One plastic tube with a tapered end. This is housed in a paper pocket that had been marked in black ink.
Accession Number: 2019.ihpst.102
Primary Materials: Plastic, Glass, Mineral.
The box provides the following information, marked in black ink, on the top surface of the lid:
“16 BA 225// Biotite granite to granodiorite// English River Subprovince Ontario// 2706”
The front surface of the box provides the following information, marked in black ink:
“16 BA 225// Duplicate Sample for Archive”
The sample number is repeated on the various sample containers inside the box.
(Box) Height = 5.3, Width = 10.2, Length = 13.2
This material has not been worn or damaged since it was packed by Kim Kwok of the Jack Satterly Geochronology Laboratory University or Toronto Department of Earth Sciences in January of 2019.
The Jack Satterly Geochronology Laboratory, Department of Earth Sciences, University of Toronto.
Date of Manufacture: 2019
These artifacts were acquired from Dr. Sandra Kamo, Director of the Jack Satterly Geochronology Laboratory, on January 19, 2019. They were among a small collection of artifacts prepared by technician Kim Kwok.
Additional Information and References:
In 1975, Thomas Edvard (Tom) Krogh (1931-2008) accepted an offer to establish a new lab at the Royal Ontario Museum. The position was supported by the Geological Survey of Canada. In 1982, while working at the ROM, Krogh developed a superior method of preparing zircon crystals based on air abrasion (see Krogh 1982). This became a standard laboratory method. Air abrasion has been succeeded by the chemical abrasion (“CA-TIMS”) method of zircon preparation that was first published in 2005.
In 2004, Krogh’s ROM U-Pb lab was transferred to the University of Toronto Department of Earth Sciences, where it remains a leading laboratory for U-Pb dating.
- Donated to UTSIC