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Pollard et al. 1998

Pollard, J.P.J., Sherwood, G.J. and Bohnel, H. (1998). Preliminary results from rock magnetic analyses of quaternary and tertiary basalts from the Gulf Coast of Mexico. Geologica Carpathica 49(1): 5-14.

As the foundation for a paleomagnetic study of the Gulf Coast oi Mexico, rock magnetic measurements were carried out on basaltic samples from 40 sites in the Gulf Coast region. Strong-field thermomagnetic and hysteresis techniques as well as room and low temperature susceptibility analyses were employed. These measurements show that the samples contain titanomagnetites with domain stales from single-to multi-domain, with few superparamagnetic grains. Most samples have undergone at least partial deuteric oxidation though a significant quantity have not. The titanomagnetites have a range of compositions from Ti-poor to Ti-rich, where the latter appear to have endured varying degrees of maghematization.

BACKGROUND DATA FILES

	Abstract

	Table 1
	Table 2
	Table 3

	Sampling & Laboratory Methods

Keywords
mexico, gulf coast, basalts, rock magnetism, alkaline provinces, india, titanomagnetites, seismicity, volcanics, traps

Journal
Geologica Carpathica