Physics – Geophysics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.s11c1754m&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #S11C-1754
Physics
Geophysics
0900 Exploration Geophysics, 0910 Data Processing, 0935 Seismic Methods (3025, 7294), 3665 Mineral Occurrences And Deposits
Scientific paper
The Flin Flon-Glennie complex (Trans-Hudson Orogen) hosts the largest Paleoproterozoic volcanogenic massive sulphide (VMS) district in the world. The main deposits of the Flin Flon camp have mineral compositions of predominantly pyrite, pyrrhotite, sphalerite, and chalcopyrite. All of these minerals are characterised by high acoustic impedances relative to typical host rocks, thus making them excellent candidates for seismic exploration. In a concerted effort to support exploration for new ore deposits in the vicinity of Flin Flon and surrounding region, a program of seismic investigations has been implemented as part of the Targetted Geoscience Initiative-3 (TGI-3) Saskatchewan-Manitoba project. This project is a joint Federal-Provincial effort led by the Geological Survey of Canada with active participation by Hudson Bay Mining and Smelting Ltd. Rock property measurements, downhole geophysical logging and vertical seismic profiles acquired in advance of the main seismic survey demonstrated the expected reflectivity of the mining camp geology. The principle seismic survey was conducted during May-September, 2007 and comprised a total of 75 km of high- resolution 2D seismic profiles and a 3D survey covering approximately 10 km2. Seismic imaging in the Flin Flon area poses significant challenges due to the complex crystalline geology, the location of the imaging targets beneath an active town and operational mine site, and the highly variable terrain. Data were recoreded using IO System IV digital vector (3-component) accelerometers, spaced at 5 m intervals (for 2D survey) with recording times of 4 s. Seismic sources spaced at 20 m intervals included Vibroseis and dynamite sources on land, and an airgun for lake areas. The results of processing the vertical-component data for P-wave reflections reveal subhorizontal reflectivity associated mainly with the Missi metasedimentary complex and steeply dipping reflectivity associated with the polydeformed volcanic rocks, including the main rhyolite horizon which hosts the VMS deposits. Some important fault zones are also imaged.
Malinowski M.
White David
No associations
LandOfFree
High-resolution multicomponent seismic imaging for VMS deposits within the Paleoproterozoic Flin Flon Belt, Trans-Hudson Orogen, Canada does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High-resolution multicomponent seismic imaging for VMS deposits within the Paleoproterozoic Flin Flon Belt, Trans-Hudson Orogen, Canada, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution multicomponent seismic imaging for VMS deposits within the Paleoproterozoic Flin Flon Belt, Trans-Hudson Orogen, Canada will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1239531