Published May 1990
| Version v1
Report
Open
Fission-track dating of apatite from deep borehole ATK-1 at Atikokan, Ontario
Description
Fission-track age and lengths have been determined on apatite separated from core recovered from the ATK-1 deep borehole at Atikokan, Ontario. The apatite ages decrease down the borehole, from 515 ± 72 Ma at the top to 376 ± 46 Ma at a depth of 993 m. The mean confined track length for fossil fission tracks in the apatite is 12.4 μm. Within the limits of the measurement the track lengths are the same for all the samples. The results of this study indicate that the rocks found currently at the surface have never been heated above ∼100C since Upper Cambrian time
Files
23001139.pdf
Files
(182.0 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:63426c4fbd58005b1a50eb48b7f61e8f
|
182.0 kB | Preview Download |
Additional details
Publishing Information
- Imprint Title
- Isotopic studies of the Eye-Dashwa Lakes pluton and the long-term integrity of whole-rock and mineral systems
- Imprint Pagination
- 73 p.
- Journal Page Range
- p. 57-64.
- Report number
- AECL--10120
INIS
- Country of Publication
- Canada
- Country of Input or Organization
- Canada
- INIS RN
- 23001139
- Subject category
- S54: ENVIRONMENTAL SCIENCES;
- Descriptors DEI
- AGE ESTIMATION; APATITES; FISSION TRACKS; GEOLOGIC FORMATIONS; ONTARIO
- Descriptors DEC
- CANADA; DEVELOPED COUNTRIES; MINERALS; NORTH AMERICA; PARTICLE TRACKS; PHOSPHATE MINERALS