Method for detecting an occurrence zone of a mantle diapir...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science

Reexamination Certificate

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C324S350000, C095S082000

Reexamination Certificate

active

11575480

ABSTRACT:
The invention covers the mining industry. Detection method of the occurrence zone of the mantle substance diapir finger consisting in that that geological observation are carried out in riftzones banked up by diapirs of the abnormal mantle and places of location of the mantle substance finger in the earth's crust are determined. Based on the presence of influence traces of silanes streams upon the rock and/or presence of separate ridges having the length up to 200 km by the width of up to 20 km and/or based on the blast traces of silanes and/or presence of scoria cones, differing by that that the correspondence of3He/4He from gases sampled from sources of 10−5order is additionally determined for determination of silicides at the small depth as physical parameters for the location of the mantle substance diapir finger in the earth's crust. The presence of high semiconductor conductivity, locality and activity of magnetic anomalies and anomalies of gravity field is additionally established. The occurrence depth of silicides is determined by magnetotelluric sounding and/or seismic reflection and refraction methods.

REFERENCES:
patent: 6430507 (2002-08-01), Jorgensen
patent: 2226283 (2004-03-01), None
Wakita et al., “Helium Spots”: Caused by a Diapiric Magma from the Upper Mantle, Apr. 28, 1978, Science, vol. 200, pp. 430-432.
Sakamoto et al., 3He/4He Ratio Distribution in and Around the Hakone Volcano, 1992, Geochemical Journal, vol. 26, pp. 189-195.
Polyak, B.G., Helium Isotopes in Subsurface Fluids from the Baikal Rift Zone: An Application to the Problems of Geodynamics, 2002, Geofisica International, vol. 41, No. 4, pp. 485-490.
Fujiwara et al., Bathymetry and Magnetic Anomalies in the Havre Trough and Southern Lau Basin: from Rifting to Spreading in Back-Arc Basins, 2001, Earth and Planetary Science Letters 185, pp. 253-264.
Mankinen et al., “Gravity and Magnetic Study of the Pahute Mesa and Oasis Valley Region, Nye County, Nevada”, USGS, Open-File Report 99-303, Version 1.0, 1999.
Rodriguez et al., “Deep Regional Resistivity Structure Across the Battle Mountain-Eureka and Carlin Trends, North-Central Nevada”, USGS, Open-File Report 01-346, On-line edition, 2001.
International Search Report for the present application PCT/RU2005/000114, dated Jul. 25, 2005.

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