Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China

Details Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ep%26s...59..747t&link_type=abstract

Earth, Planets and Space, Volume 59, p. 747-754.

Other

Scientific paper

A paleointensity study using the Thellier's method was made on Tertiary basaltic rocks in Inner Mongolia and Hebei Province, northeastern China. K-Ar ages were previously reported for all the rocks, which range around 6-8 Ma and 28-32 Ma. Sample selection was based on total quality of remanence behavior and rock magnetism. High stability to AF and thermal demagnetization, small difference between the heating and cooling curves of magnetic susceptibility vs. temperature measurements, and PSD to SD characteristics in the Day plot of the hysteresis parameters were required. Experiments in vacuum using Coe's procedure were applied to 54 specimens from nine flows. Experiments were successful for 34 specimens, giving seven flow mean paleointensities. Excluding two flow means (in one flow, only two specimens from the same sample survived and in the other, the within-site error amounts to 42%) the final success rate was 29 out of 54 (54%), which is not low. The obtained results range from 54 to 65 μT, except for one lava which gave 23 μT. These results indicate that although the paleointensity in the Tertiary was generally smaller than the present-day value, there were large fluctuations in the dipole moment, and paleointensities of the present-day level were often attained.

Affiliated with

Also associated with

No associations

Rating

Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paleointensities from Tertiary basalts, Inner Mongolia and Hebei Province, northeastern China will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1662919