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The AAPG/Datapages Combined Publications Database

Showing 10,504 Results. Searched 195,405 documents.

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ABSTRACT: Near-Surface Magnetic Anomalies, Potential Indicators of Seepage andDeep-Seated Faulting; #90007 (2002)

John P. Land, Richard L. Coons, J. David Lazor

Search and Discovery.com

... to record the full spectrum of the magnetic field, from high frequency events of the shallow sediments to the lowest frequency events of magnetic basement...

2002

Abstract: Magnetic Mapping in Southeast Asia „ Dealing with a Low Inclination Field

C. Foss

Geological Society of Malaysia (GSM)

...Abstract: Magnetic Mapping in Southeast Asia „ Dealing with a Low Inclination Field C. Foss 195 Magnetic mapping in Southeast Asia - Dealing...

1995

Abstract: Gravity and magnetic surveys of a mafic Proterozoic sill at Cape St. Francis, Newfoundland

A. Nurkusuma, A. Leitch

Atlantic Geology

... (TMI) along the sill that are higher than in the surrounding sedimentary rocks, which is the same intensity as the Earth’s magnetic field...

2013

Abstract: Mapping Magnetic Properties of the Post-Wapiabi Sandstones from South-central Alberta Foothills; #90225 (2015)

Christian I. Abaco, Don C. Lawton, and Deborah A. Spratt

Search and Discovery.com

... intensity values (ranging between 9.8 and -10.8 nT). The field magnetic susceptibility measurements show an excellent correlation between the processed...

2015

Magnetic Susceptibility and Magnetite Content of Sands and Shales

D. M. Collingwood

AAPG Bulletin

... in the earth's field. However, the results, which are true in a relative sense, show a definite increase of susceptibility with increase of magnetic mineral...

1930

Experimental Low-Altitude Aeromagnetic Reconnaissance for Petroleum in Arctic National Wildlife Refuge, Alaska, Using Horizontal Gradients--A Progress Report: ABSTRACT

Terrence J. Donovan, John D. Hendricks, Alan A. Roberts, Patricia T. Eliason

AAPG Bulletin

... magnetic field arising from areally restricted increased amounts of shallow-buried magnetite over hydrocarbon deposits have been mapped in the Arctic...

1983

Seepage-Induced Magnetic Anomalies Associated with Oil and Gas Fields: Onshore and Offshore Examples, #80416 (2014).

Dietmar (Deet) Schumacher, Robert S. Foote

Search and Discovery.com

... the deep-water Gulf of Mexico) and Africa. Methodology Variation in the measurement of the earth/s magnetic field can result from the following causes...

2014

Magnetic-fractionation-mineralogical Analysis

F. N. Efimov Ф. Н. Ефимов

Petroleum Geology: A Digest of Russian Literature

... of the magnetic field between the poles of the electromagnet. The size of the grains, pulverized for this, ought to be 0.14 - 0.01 mm. and less depending...

1958

Magnetics: Part 7. Geophysical Methods

Michael S. Reford

AAPG Special Volumes

... magnetic field has magnetized certain minerals in the upper part of the crust. Magnetite, an accessory mineral, is by far the most important...

1992

Magnetometer Study of the Caddo-Shreveport Uplift, Louisiana

William M. Barret

AAPG Bulletin

... magnetic field are associated with the Caddo-Shreveport uplift. The writer presents the relationship between geologic structure and the vertical element...

1930

High-Gradient Magnetic Separation Applied to Sand-Size Particles: An Example of Feldspar Separation from Mafic Minerals: RESEARCH METHOD PAPER

S. Hillier, M. E. Hodson

Journal of Sedimentary Research (SEPM)

... 1974; Kolm et al. 1975; Gerber and Birss 1983). Essentially, the separation of particles by HGMS is based on producing a magnetic field gradient...

1997

Some Basic Similarities and Differences of Micromagnetics and Conventional Magnetic Surveys

J. P. Land

Houston Geological Society Bulletin

... field is locally distorted and a magnetic anomaly created. The wavelength of a magnetic anomaly is a function of the distance between the magnetic sensor...

1993

Geologic-Tectonic Model of the Zone of Junction of the North Caspian Depression and the Ryazano-Saratov Downwarp

V. M. Lepilin, M. I. Ryskin, V. V. Romanov

Petroleum Geology: A Digest of Russian Literature

... highs; 2-superimposed depressions; 3-ancient depressions; 4-areas of carbonate deposition; 5-zero contour of magnetic field; 6-outline of gravity...

1992

Two-step filtering of ground magnetic data for archaeological investigation at Sungai Batu, Kedah, Malaysia

Sabiu Bala Muhammad, Rosli Saad, Mokhtar Saidin, Rais Yusoh, Mustapha Adejo Mohammed, Yakubu Mingyi Samuel

Geological Society of Malaysia (GSM)

... author email address: [email protected] Magnetic survey measures combined primary magnetic field intensity of the different components of the Earth...

2018

Recognition of Structures from Airborne Magnetics: GEOLOGICAL NOTES

Kalman N. Isaacs

AAPG Bulletin

.... The magnetic inclination in this area is about 30°, and the intensity of the undisturbed field is about 35,000^ggr. Typically, the induced anomaly...

1966

Abstract: Contact mapping and modeling using magnetics, Heath Steele Mine area, northern New Brunswick

Sean McDonald

Atlantic Geology

... and the lack of well defined contacts. In this situation, conventional ground mapping techniques are limited and other methods must be sought Total field...

1990

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