Notes On Rock Magnetization Characteristics In Applied Geophysical Studies

Clark, David; Emerson, D.W.

doi:10.1071/eg991547

Cited by 187 publications

(93 citation statements)

References 15 publications

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“…Comparison of magnetic and resistivity models and geological constraints shows the conductor is spatially correlated with the foliated serpentinite unit in the lower part of LCLZ (unit 6C) ( Figure 9) and rocks of susceptibility of 0.2 SI.. Models of susceptibility versus magnetite content (Clark and Emerson 1991) indicate that the conductor corresponds to rocks with a magnetite content of ~5% (Figure 10). In contrast, the MZ (unit 6B) has higher susceptibility, 0.3 SI or ~8% magnetite, but is relatively resistive.…”

Section: Geophysical and Geological Interpretationmentioning

confidence: 99%

Interpretation of resistivity and magnetic anomalies from the Fox River Sill, Trans Hudson Orogen, Canada

Ferguson

Epp

Saturnino

et al. 2015

ASEG Extended Abstracts

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Section: Geophysical and Geological Interpretationmentioning

confidence: 99%

Interpretation of resistivity and magnetic anomalies from the Fox River Sill, Trans Hudson Orogen, Canada

Ferguson

Epp

Saturnino

et al. 2015

ASEG Extended Abstracts

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“…Factors influencing rock-magnetic properties for various rock-types have been summarized by Reynolds et al (1990) and Clark and Emerson (1991).…”

Section: Marine Magnetics Of the Gulf Of Pozzuolimentioning

confidence: 99%

New seismo-stratigraphic and marine magnetic data of the Gulf of Pozzuoli (Naples Bay, Tyrrhenian Sea, Italy): inferences for the tectonic and magmatic events of the Phlegrean Fields volcanic complex (Campania)

2012

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A detailed reconstruction of the stratigraphic and tectonic setting of the Gulf of Pozzuoli (Naples Bay) is provided on the basis of newly acquired single channel seismic profiles coupled with already recorded marine magnetics gathering the volcanic nature of some seismic units. Inferences for the tectonic and magmatic setting of the Phlegrean Fields volcanic complex, a volcanic district surrounding the western part of the Gulf of Naples, where volcanism has been active since at least 50 ka, are also discussed. The Gulf of Pozzuoli represents the submerged border of the Phlegrean caldera, resulting from the volcano-tectonic collapse induced from the pyroclastic flow deposits of the Campanian Ignimbrite (35 ka). Several morpho-depositional units have been identified, i.e., the inner continental shelf, the central basin, the submerged volcanic banks and the outer continental shelf. The stratigraphic relationships between the Quaternary volcanic units related to the offshore caldera border and the overlying deposits of the Late Quaternary depositional sequence in the Gulf of Pozzuoli have been highlighted. Fourteen main seismic units, both volcanic and sedimentary, tectonically controlled due to contemporaneous folding and normal faulting have been revealed by geological interpretation. Volcanic dykes, characterized by acoustically transparent sub-vertical bodies, locally bounded by normal faults, testify to the magma uprising in correspondence with extensional structures. A large field of tuff cones interlayered with marine deposits off the island of Nisida, on the western rim of the gulf, is related to the emplacement of the Neapolitan Yellow Tuff deposits. A thick volcanic unit, exposed over a large area off the Capo Miseno volcanic edifice is connected with the Bacoli-Isola Pennata-Capo Miseno yellow tuffs, cropping out in the northern Phlegrean Fields.

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“…Layer 3 (0.049 SI) is gabbroic, with an average thickness of about 4.97 ± 0.90 km. The numbers in parentheses give the susceptibility values used for the rock types (Clark and Emerson, 1991;Hunt et al, 1995). The VIS values for the oceans are computed by multiplying the susceptibility values of the individual oceanic layers with their average thicknesses.…”

Section: Global Vertically Integrated Susceptibility Modelmentioning

confidence: 99%

“…Thus, the upper mantle is considered to be non-magnetic. The last sources of information are the standard volume susceptibility values for various rock types compiled from standard sources (Clark and Emerson, 1991;Hunt et al, 1995).…”

Section: Global Vertically Integrated Susceptibility Modelmentioning

confidence: 99%

Why no anomaly is visible over most of the continent–ocean boundary in the global crustal magnetic field

Hemant

Maus

2005

Physics of the Earth and Planetary Interiors

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Notes On Rock Magnetization Characteristics In Applied Geophysical Studies

Cited by 187 publications

References 15 publications

Interpretation of resistivity and magnetic anomalies from the Fox River Sill, Trans Hudson Orogen, Canada

Interpretation of resistivity and magnetic anomalies from the Fox River Sill, Trans Hudson Orogen, Canada

New seismo-stratigraphic and marine magnetic data of the Gulf of Pozzuoli (Naples Bay, Tyrrhenian Sea, Italy): inferences for the tectonic and magmatic events of the Phlegrean Fields volcanic complex (Campania)

Why no anomaly is visible over most of the continent–ocean boundary in the global crustal magnetic field

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