Geothermal gradients and terrestrial heat flow along a south‐north profile in the Sverdrup Basin, Canadian Arctic Archipelago

Geophysics ◽  
1990 ◽  
Vol 55 (8) ◽  
pp. 1105-1107 ◽  
Author(s):  
F. W. Jones ◽  
J. A. Majorowicz ◽  
A. F. Embry ◽  
A. M. Jessop
Keyword(s):  
Fluid Flow ◽  
Heat Flow ◽  
Lower Cretaceous ◽  
Canadian Arctic ◽  
Thermal Anomaly ◽  
Temperature Gradients ◽  
Petroleum Exploration ◽  
Canadian Arctic Archipelago ◽  
Sverdrup Basin ◽  
Sill Intrusion

Data from eleven petroleum exploration wells along a south‐north profile in the Sverdrup Basin of the Canadian Arctic Islands indicate large variations in temperature gradients(18 ± 2 to 39 ± 2 mK/m) and heat‐flow values [Formula: see text]. High values occur near the axis of the basin and values decrease systematically toward the southern and northern flanks of the basin. The basin axis in this area is the zone of maximum crustal attenuation and Lower Cretaceous dike and sill intrusion, but any thermal anomaly associated with these events will have dissipated by now. The present heat‐flow pattern is likely the result of thermal refraction or fluid flow in the basin.

Middle Jurassic to Lower Cretaceous paleoclimate of Sverdrup Basin, Canadian Arctic Archipelago inferred from the palynostratigraphy

2013 ◽  
Vol 44 ◽  
pp. 240-255 ◽  
Author(s):  
Jennifer M. Galloway ◽  
Arthur R. Sweet ◽  
Graeme T. Swindles ◽  
Keith Dewing ◽  
Thomas Hadlari ◽  
...  
Keyword(s):  
Lower Cretaceous ◽  
Middle Jurassic ◽  
Canadian Arctic ◽  
Canadian Arctic Archipelago ◽  
Sverdrup Basin

ADDITIONAL HEAT FLOW DETERMINATIONS IN THE AREA OF MOULD BAY, ARCTIC CANADA

1966 ◽  
Vol 3 (2) ◽  
pp. 237-246 ◽  
Author(s):  
W. S. B. Paterson ◽  
L. K. Law
Keyword(s):  
Heat Flow ◽  
Canadian Arctic ◽  
The Arctic ◽  
Canadian Arctic Archipelago ◽  
General Area ◽  
Geothermal Heat ◽  
Field Methods ◽  
The Mean ◽  
Water Depths ◽  
Made In

Seven determinations of geothermal heat flow were made in the general area of southern Prince Patrick Island in the Canadian Arctic Archipelago. Measurements were made from sea ice in water depths of between 200 and 600 m. The mean heat flow for the two stations on the continental shelf in the Arctic Ocean was 0.46 ± 0.08 μcal cm−2 s−1. The mean heat flow for the five stations in the channels to the east of Mould Bay was 1.46 ± 0.16 μcal cm−2 s−1. The instrument and field methods are described. Errors due to the instrument and to the environment are discussed.

A heat flow profile across the Sverdrup Basin, Canadian Arctic Islands

Geophysics ◽  
1989 ◽  
Vol 54 (2) ◽  
pp. 171-180 ◽  
Author(s):  
F. W. Jones ◽  
J. A. Majorowicz ◽  
A. F. Embry
Keyword(s):  
Heat Flow ◽  
Canadian Arctic ◽  
Ground Surface ◽  
Geothermal Gradient ◽  
Flow Profile ◽  
Heat Flows ◽  
Boundary Temperature ◽  
Sverdrup Basin ◽  
Base Boundary ◽  
Rock Analysis

An average geothermal gradient of 25 ± 5 mK/m and an average heat flow of [Formula: see text] have been determined for 16 out of 20 analyzed wells along a profile across the Sverdrup Basin in the Canadian Arctic. These estimates, based on deep bottom‐hole temperature (BHT) data from exploration wells and the permafrost base boundary temperature, together with assumed heat conductivities from net rock analysis, are surprisingly low and disagree with previously published results based on shallow data. The differences may be due to the dramatic changes in boundary temperature conditions from moderate subsea conditions to ground‐surface low temperatures as a result of marine regression. Because of these effects, it appears that deep BHT temperature data are valuable in providing information about the deep heat flow. The heat flows thus determined indicate that the basin has approached thermal equilibrium.

Sign in / Sign up

Export Citation Format

Share Document