Application of Apatite Fission-track Dating to the Study of Porphyry Type Mineral Deposits

1973 ◽  
Vol 10 (6) ◽  
pp. 846-851
Author(s):  
Peter A. Christopher
Keyword(s):  
British Columbia ◽  
Fission Track ◽  
Yukon Territory ◽  
Mineral Deposits ◽  
Fission Track Dating ◽  
Apatite Fission Track ◽  
Mountain Area ◽  
Thermal Event ◽  
Fission Track Ages ◽  
Apatite Fission Track Dating

Apatite fission-track ages for weakly altered rocks from the Syenite Range and Burwash Landing area of the Yukon Territory, and Cassiar area of British Columbia are shown to be consistent and generally concordant with K–Ar ages obtained on biotite from the same samples. More intensely altered rocks from Granisle Mine and the Copper Mountain area of British Columbia have discordant ages, due in part to alteration of apatite grains and, for samples from the Copper Mountain intrusions, to a Cretaceous (?) thermal event.

scholarly journals Geochronological and structural investigations of the Northern Pelagonian crystalline zone. Constraints from K/Ar and zircon and apatite fission track dating

2001 ◽  
Vol 34 (1) ◽  
pp. 91 ◽  
Author(s):  
T. MOST ◽  
W. FRISCH ◽  
I. DUNKL ◽  
B. KADOSA ◽  
B. BOEV ◽  
...  
Keyword(s):  
Fission Track ◽  
White Mica ◽  
Fission Track Dating ◽  
Apatite Fission Track ◽  
Structural Investigations ◽  
Polyphase Deformation ◽  
Westward Movement ◽  
Fission Track Ages ◽  
Apatite Fission Track Dating ◽  
Pelagonian Zone

The northern part of the Pelagonian Zone experienced a polyphase deformation and metamorphism. Four groups of K/Ar biotite and white mica ages document (I) Hercynian emplacement of plutonic rocks, (II) Eohellenic nappe stacking associated with penetrative deformation / recrystallisation, (III) a Paleocene event in the Mesocoic cover rocks in Greece and (IV) a westward movement of West Pelagonian nappes during Eocene to Oligocene time. First zircon/apatite fission track ages clustering around 70 Ma and 45 to 30 Ma.

scholarly journals Record of paleofluid circulation in faults revealed by hematite (U-Th)/He and apatite fission-track dating: An example from Gower Peninsula fault fissures, Wales

Lithosphere ◽  
2016 ◽  
Vol 8 (4) ◽  
pp. 379-385 ◽  
Author(s):  
Alexis K. Ault ◽  
Max Frenzel ◽  
Peter W. Reiners ◽  
Nigel H. Woodcock ◽  
Stuart N. Thomson
Keyword(s):  
Fission Track ◽  
Fission Track Dating ◽  
Apatite Fission Track ◽  
Apatite Fission Track Dating

K–Ar and Fission Track Geochronometry of an Eocene Thermal Event in the Kettle River (West Half) Map Area, Southern British Columbia

1975 ◽  
Vol 12 (5) ◽  
pp. 836-843 ◽  
Author(s):  
G. A. Medford
Keyword(s):  
British Columbia ◽  
Abrupt Change ◽  
Fission Track ◽  
Apatite Fission Track ◽  
Thermal Event ◽  
South Central ◽  
Early Tertiary ◽  
Okanagan Valley

The Okanagan and Similkameen plutonic complexes west of the Okanagan Valley of south-central British Columbia yield K–Ar dates that range from 185 to 133 m.y. East of the Okanagan Valley Shuswap gneisses into which the plutonics intrude, and which may be as old as pre-midCarboniferous in age yield K–Ar dates between 59.9 and 47.4 m.y. This abrupt change, which approximately coincides with the Okanagan Valley, is a consequence of an intense thermal event in the early Tertiary which has reset K–Ar dates in the gneisses at shallow depths. Comparison of K–Ar, sphene and apatite fission track dates demonstrates that the heating affected the plutons west of the Okanagan Valley and that cooling of the Shuswap gneisses occurred at a rate in excess of 25 °C. per million years. The scatter observed in the older K–Ar dates of the plutonic complexes could be caused by post-emplacement heating with variable partial argon loss rather than by separate magmatic events. Thus, only the oldesl K–Ar dates obtained from the plutons may be significant as minimum ages for emplacement.

scholarly journals Thermal history of the Guli pluton (north of the Siberian platform) according to apatite fission-track dating and computer modeling

2020 ◽  
Vol 11 (1) ◽  
pp. 75-87
Author(s):  
M. S. Myshenkova ◽  
V. A. Zaitsev ◽  
S. Thomson ◽  
A. V. Latyshev ◽  
V. S. Zakharov ◽  
...  
Keyword(s):  
Computer Modeling ◽  
Siberian Platform ◽  
Alternative Model ◽  
Fission Track ◽  
Sedimentary Cover ◽  
Fission Track Dating ◽  
Apatite Fission Track ◽  
First Results ◽  
History Of ◽  
Apatite Fission Track Dating

We present the first results of fission-track dating of apatite monofractions from two rock samples taken from the Southern carbonatite massif of the world’s largest alkaline ultrabasic Guli pluton (~250 Ma), located within the Maymecha-Kotuy region of the Siberain Traps. Based on the apatite fission-track data and computer modeling, we propose two alternative model of the Guli pluton's tectonothermal history. The models suggest (1) rapid post-magmatic cooling of the studied rocks in hypabyssal conditions at depth about 1.5 km, or (2) their burial under a 2-3 km thick volcano-sedimentary cover and reheating above 110°C, followed by uplift and exhumation ca. 218 Ma.

Sign in / Sign up

Export Citation Format

Share Document