AEROMAGNETIC PROSPECTING FOR IRON ORE ON EYRE PENINSULA, SOUTH AUSTRALIA

Geophysics ◽  
1963 ◽  
Vol 28 (4) ◽  
pp. 593-607 ◽  
Author(s):  
W. G. Mumme
Keyword(s):  
Iron Ore ◽  
South Australia ◽  
Ore Deposits ◽  
Average Error ◽  
Aeromagnetic Survey ◽  
Iron Ore Deposits ◽  
Good Agreement

The analysis of anomalies on the aeromagnetic survey maps of the Middleback Ranges and other areas of Eyre Peninsula in South Australia which were flown in the search for iron‐ore deposits has provided depth estimates which are in good agreement with known and later discovered geological facts. The average error involved in these estimates is of the order of 15 percent.

scholarly journals Detailed airborne geophysical survey of complexly dislocated strata in the Sutam terrane (Aldan shield) during studies of iron-ore deposits

2020 ◽  
Vol 11 (1) ◽  
pp. 141-150 ◽  
Author(s):  
A. A. Syasko ◽  
N. N. Grib ◽  
V. S. Imaev ◽  
L. P. Imaeva ◽  
I. I. Kolodeznikov
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Survey Data ◽  
Iron Ore ◽  
Ore Deposits ◽  
Aeromagnetic Survey ◽  
Geophysical Surveys ◽  
Iron Ore Deposits ◽  
And Control ◽  
The Magnetic Field

Magnetic exploration is the most informational and economical method of prospecting and exploration of iron-ore deposits. In rough-terrain and remote areas without any infrastructure, problems associated with ground-based methods can be avoided by using modern unmanned technologies that allow conducting geophysical surveys in a more efficient way. An unmanned aeromagnetic survey complex (aerial vehicle, UAV) Geoscan 401 was used to assess the possibility of using UAVs for aeromagnetic surveying of iron-ore deposits. Our experimental study was conducted in the well-studied area of the largest iron-ore deposit of South Yakutia. The UAV capacities were confirmed by comparing the aeromagnetic survey data with the available data obtained by ground magnetic exploration of the study area. By analysing magnetic fields, we established that the anomalies detected by the ground and aeromagnetic surveys were fully identical. Furthermore, a weak anomaly was discovered in the northeastern part of the study area (it was not reflected in the magnetic field from the ground survey data). Recalculation of the vertical gradient of the magnetic field shows that the anomaly is caused by a blind ore body. Its upper edge is located at a depth of 200–250 m from the day surface. In calculations for a data array without gradient intervals, a mean square error (MSE) amounts to 1.01 nT. An absolute error in the heights of the working and control flights did not exceed 1.5 m. Both the preliminary and control measurements were performed very efficiently. Profiles for UAV surveys were spaced by 100 m. A 1.0 km2 site was covered by one flight within approximately 20 minutes. The Geoskan-401 UAV is useful for obtaining orthophotos, topographic maps and 3D models of the surveyed territory as required for further studies consistent with the magnetic surveys. The aeromagnetic surveys were followed by trenching to verify the newly discovered anomalies. Based on the results of this experimental study, the forecast resources of the Sutam deposit should be increased by almost 250–350 million tons, i.e. plus 15 % to the previously explored and approved reserves of the Sutam field.

The Pilot Knob Iron Ore Deposits in Southeast Missouri: A High-To-Low Temperature Magmatic-Hydrothermal Continuum

2021 ◽  
pp. 103973
Author(s):  
Bolorchimeg N. Tunnell ◽  
Marek Locmelis ◽  
Cheryl Seeger ◽  
Ryan Mathur ◽  
István Dunkl ◽  
...  
Keyword(s):  
Low Temperature ◽  
Iron Ore ◽  
Ore Deposits ◽  
Southeast Missouri ◽  
Iron Ore Deposits

Palaeoproterozoic metavolcanic and metasedimentary succession hosting the Dannemora iron ore deposits, Bergslagen region, Sweden

GFF ◽  
2012 ◽  
Vol 134 (2) ◽  
pp. 71-85 ◽  
Author(s):  
P. Dahlin ◽  
R. Allen ◽  
H. Sjöström
Keyword(s):  
Iron Ore ◽  
Ore Deposits ◽  
Iron Ore Deposits

Iron Ore Deposits Associated with Precambrian Iron Formations

Elements ◽  
2011 ◽  
Vol 7 (2) ◽  
pp. 119-120 ◽  
Author(s):  
B. M. Simonson
Keyword(s):  
Iron Ore ◽  
Ore Deposits ◽  
Iron Ore Deposits ◽  
Iron Formations
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