Early Samples from York K-Ar Lab

Physics

Accession Number: 2018.ph.786

Description:

A collection of 37 assorted containers of mineral samples that were obtained from a single box collected from the York K-Ar laboratory. The box also contained two pieces of paper with extensive notations.

The box contains the following glass jars. Each jar has been labelled with a masking tape label on the top and around the perimeter.

Four clear glass jars (10 cm tall) with black-painted metal lids.

2018.ph.786.1: Top Label: “DWS 16A ym”; Central Label: “Strangway 16A ym” .
2018.ph.786.2: Top Label: “Strangway 1-5-1”; Central Label: “Strangway 1-5-1”.
2018.ph.786.3: Top label and central label: “DWS 1-6-1”.
2018.ph.786.4: Top Label: “1-5-2”; Central Label: “DWS 1-5-2”.

2018.ph.786.5: A taller Gerber baby food jar with a blue and silver-painted metal lid. Top Label: “MPP HUDSON 22-68 133 17”.

2018.ph.786.6: A taller Gerber baby food jar with a red and silver-painted metal lid. Top label and central label “Strangway 1-4-1″.

Four shorter (8cm tall) Gerber baby food jars with blue and silver-painted metal lids.

2018.ph.786.7: Top and central labels: ” MAR Hu 190-2″.

2018.ph.786.8: Top and central labels: “M. A. R. Hu 22-68 165-17 Serpentinite”.

2018.ph.786.9: Top and central labels: “Strangway Ym 8A”.

2018.ph.786.10: Top and central labels: “HU 19-66-1 SEMI CHILLED EDGE”.

Three shorter (8cm tall) Gerber baby food jars with red and silver-painted metal lids.

2018.ph.786.11: Top and central labels: “STRANGWAY 1-8-1”.

2018.ph.786.12: Top and central labels: “MAR Hu 165 11”.

2018.ph.786.13: Top and central labels: “MAR Hu 159 48”.

Four clear plastic containers (7.5 cm) with white plastic lids. The containers are marked on the top and sides with black marker.

2018.ph.786.14: Top marking: “CP68-155A”. Central marking: “CP68-155-A (K-Ar 1638)”.

2018.ph.786.15: Top and central markings: “8-1 AS IS”.

2018.ph.786.16: Top marking: “CP 68-135”. Central marking: “CP 68-137 (K-Ar 1637)”.

2018.ph.786.17: Top marking and central markings: “HU 190-1 AS-IS”.

Thirteen shorter (5 cm) clear glass bottles with translucent plastic lids:

2018.ph.786.18: Top marking: “Hu 22-68-133-17”. Central marking: “M. A. R. Hu 22-68 133-17”.

2018.ph.786.19: Top and centre markings: “TH 8-1 c”.

2018.ph.786.20: Top marking: “22-68-147-1”. Central marking: “M. A. R. Hu 22-68 147-1”.

2018.ph.786.21: Top marking: “KA 1601 AG 190-2″. Central marking: ” * KA 1601 AG 190-2″.

2018.ph.786.22: Top marking: “AG 68-156-1″. Central marking: ” * KA 1605 AG 68-156-1 * (WR)”.

A cardboard box containing 37 assorted containers of mineral samples from the York K-Ar laboratory and three pieces of paper with extensive notations. The box is labelled in black marker “Samples from John’s Desk Oct / 82”.

The box contains the following glass jars. Each jar has been labelled with a masking tape label on the top and around the perimeter.

Four clear glass jars (10 cm tall) with black-painted metal lids.

2018.ph.786.1: Top Label: “DWS 16A ym”; Central Label: “Strangway 16A ym”.
2018.ph.786.2: Top Label: “Strangway 1-5-1”; Central Label: “Strangway 1-5-1”
2018.ph.786.3: Top label and central label: “DWS 1-6-1”.
2018.ph.786.4: Top Label: “1-5-2”; Central Label: “DWS 1-5-2”.

2018.ph.786.5: A taller Gerber baby food jar with a blue and silver-painted metal lid. Top Label: “MPP HUDSON 22-68 133 17”.

2018.ph.786.6: A taller Gerber baby food jar with a red and silver-painted metal lid. Top label and central label “Strangway 1-4-1”.

Four shorter (8cm tall) Gerber baby food jars with blue and silver-painted metal lids.

2018.ph.786.7: Top and central labels: “MAR Hu 190-2”.

2018.ph.786.8: Top and central labels: “M. A. R. Hu 22-68 165-17 Serpentinite”.

2018.ph.786.9: Top and central labels: “Strangway Ym 8A”.

2018.ph.786.10: Top and central labels: “HU 19-66-1 SEMI CHILLED EDGE”.

Three shorter (8cm tall) Gerber baby food jars with red and silver-painted metal lids.

2018.ph.786.11: Top and central labels: “STRANGWAY 1-8-1”.

2018.ph.786.12: Top and central labels: “MAR Hu 165 11”.

2018.ph.786.13: Top and central labels: “MAR Hu 159 48”.

Four clear plastic containers (7.5 cm) with white plastic lids. The containers are marked on the top and sides with black marker.

2018.ph.786.14: Top marking: “CP68-155A”. Central marking: “CP68-155-A (K-Ar 1638)”.

2018.ph.786.15: Top and central markings: “8-1 AS IS”.

2018.ph.786.16: Top marking: “CP 68-135”. Central marking: “CP 68-137 (K-Ar 1637)”.

2018.ph.786.17: Top marking and central markings: “HU 190-1 AS-IS”.

Thirteen shorter (5 cm) clear glass bottles with translucent plastic lids:

2018.ph.786.18: Top marking: “Hu 22-68-133-17”. Central marking: “M. A. R. Hu 22-68 133-17”.

2018.ph.786.19: Top and centre markings: “TH 8-1 c”.

2018.ph.786.20: Top marking: “22-68-147-1”. Central marking: “M. A. R. Hu 22-68 147-1”.

2018.ph.786.21: Top marking: “KA 1601 AG 190-2″. Central marking: ” * KA 1601 AG 190-2″.

2018.ph.786.22: Top marking: “AG 68-156-1″. Central marking: ” * KA 1605 AG 68-156-1 * (WR)”.

2018.ph.786.23: Top marking: “Hu 108-3”. Central marking: “M. A. R. Hu 108-3 SERPENTINE (EX-PERIDOTITE)”.

2018.ph.786.24: Top marking: “18B”. Central marking: “STRANGWAY 18-B”.

2018.ph.786.25: Top marking: “Hu 190-2”. Central marking: “M. A. R. Hu 192-2”.

2018.ph.786.26: Top marking: “1-3-1”. Central marking: “STRANGWAY 1-3-1”.

2018.ph.786.27: Top marking: “STRANGWAY YM 10A”. Central marking: “STRANGWAY YM 10A”.

2018.ph.786.28: Top marking: “HU 156-1 M.A.R.”. Central marking: “M.A.R Hu 156-1”.

2018.ph.786.29: Top marking: “HU 22-68 106-1.”. Central marking: “M.A.R Hu 22-68 106-1”.

2018.ph.786.30: Top marking: “HU 19-66-1 GLASS”. Central marking: “M.A.R Hu 19-66 GLASS”.

Three narrow (7.5 cm) clear glass phials with black plastic lids. They are labelled at the top with black masking tape, and on the front surface with black marker 2018.ph.33 has an additional label.

2018.ph.786.31: Top marking: “CQ 2”. Central marking is difficult to read, so this transcription may be incorrect: “CAN CR. / Giu Q. / -1z0 +408 / CQ 2”.

2018.ph.786.32: Top marking: “CQ 3”. Central marking is difficult to read, so this transcription may be incorrect: “CAMC / Gicc Q. / CQ3/ ..400”.

2018.ph.786.33: Top marking: “Otto Stock 3053A”. Central markings: “A”, “Otto Stock 3053 Biotite +150 #.

2018.ph.786.34: A yellowed translucent white plastic bottle (8cm) with a black cap. The top masking table label reads “Dodson’s Slate”. The front label reads “20376A Dodson’s Slate 240 -80”.

2018.ph.786.35: A translucent white plastic bottle (8cm) with a white translucent cap. Lettering at the top in permanent marker reads “DWS 1-3-1”. The front masking tape label reads “Strangway 1-3-1”.

Two glass phials with cork lids. They are labelled in masking tape at the top, and with permanent marker at the sides.

2018.ph.786.36: Top and central markings: “HB 1487”.

2018.ph.786.37: Top and central markings: “BIO 1487”.

2018.ph.786.38: Three sheets of paper notes listing sample numbers and other information.

Primary Materials: Glass, Metal, Minerals

Markings:

Due to the number of objects within this entry, markings are described in the “Description” field above.

Function:

These mineral samples were tested using the potassium-argon (K-Ar) dating process in order to determine their geological age.

Condition:

Very good: All of the containers are intact.

Manufacturer:

York K-Ar Dating Laboratory, Department of Physics, University of Toronto.

Date of Manufacture: c. 1960-1980s

Provenance:

These samples appear to have been gathered for dating purposes in the late 1960s. They were gathered from the desk of a technician in October of 1982 and placed in a cardboard box. The box was labelled in black marker “Samples from John’s Desk Oct / 82”

This box was among a number of artefacts collected on Friday, July 24th 2015 from the Potassium-Argon dating laboratory that was founded by Professor Derek York (1936-2007). The laboratory was removed shortly after these items were gathered.

Several samples are labelled with the name “Strangway” suggesting that they were tested to compare dates obtained by geophysicist David Strangway using paleomagnetic techniques.

Historical Notes:

These are macroscopic samples, prepared c. 1960s, that were used in an early form of K-Ar dating. Later samples, for instance those used in the laser step heating method contain much less material.

This artefact is significant because it embodies a collaboration between two world-class Canadian geophysicists: Derek York (1936-2007) and David Strangway (1934-2016).

  • Donated to UTSIC