Drainage development on basaltic lava flows, Cima volcanic field, southeast California, and Lunar Crater volcanic field, south-central Nevada: Alternative interpretation

1989 ◽  
Vol 101 (4) ◽  
pp. 595-599 ◽  
Author(s):  
MARK A. MELTON
Keyword(s):  
Volcanic Field ◽  
Alternative Interpretation ◽  
Lava Flows ◽  
Basaltic Lava ◽  
Lunar Crater ◽  
South Central ◽  
Drainage Development ◽  
Cima Volcanic Field

Numerical simulation of basaltic lava flows in the Auckland Volcanic Field, New Zealand—implication for volcanic hazard assessment

2014 ◽  
Vol 76 (11) ◽  
Author(s):  
Gábor Kereszturi ◽  
Annalisa Cappello ◽  
Gaetana Ganci ◽  
Jonathan Procter ◽  
Károly Németh ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
New Zealand ◽  
Hazard Assessment ◽  
Volcanic Hazard ◽  
Volcanic Field ◽  
Lava Flows ◽  
Basaltic Lava ◽  
Auckland Volcanic Field

Paleointensity study of late Miocene igneous rocks from British Columbia, Canada

1970 ◽  
Vol 7 (1) ◽  
pp. 176-181 ◽  
Author(s):  
D. T. A. Symons ◽  
E. J. Schwarz
Keyword(s):  
Magnetic Field ◽  
British Columbia ◽  
North America ◽  
Late Miocene ◽  
Igneous Rocks ◽  
Lava Flows ◽  
Basaltic Lava ◽  
Remanent Magnetism ◽  
South Central ◽  
Demagnetizing Fields

Sixty-nine specimens representing 49 late Miocene (10–15 m.y. ago) basaltic lava flows and 4 associated gabbroic intrusive plugs were studied in an attempt to estimate the paleointensity of the earth's magnetic field in south-central British Columbia. The paleointensity determination was based on the comparison of the decay of natural remanent magnetism intensity with that of an artificial thermoremanent magnetism (H = 0.35 Oe) in progressively higher alternating demagnetizing fields (peak: 800 Oe). Only 22 of the 69 specimens were considered to yield reliable paleointensity determinations which give an estimated average equatorial intensity for the late Miocene earth's field of 0.18 Oe ± 0.11. This result agrees reasonably well with those from contemporaneous rocks from North America, Japan, and Iceland. Several low determinations with consistent, normal, or reversed remanence directions suggest that the intensity of the non-dipole components of the late Miocene earth's field must have been very small in the sampled area.

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