Forum members,
I think many of you might like to view and discuss the various geotechnical and geophysical investigations conducted on Oak Island. Being that Oak Island is one of the longest treasure hunts on record, you will read in this thread of the difficulties the natural geology posses, and of scientific methods so far used. This treasure hunt has been for some a lifelong quest, for others it cost their lives. While there are no doubts for man to have worked underground during the late 1500s (I think 1583), there are doubts if the treasure is still there. We have a total of nine different accounts which speak to a treasure being secretly removed.
Provenances for much of the raw data were furnished by David Tobias, President of Oak Island Tours Inc., the parent company of Triton Alliance and several others who worked Oak Island from the late 1960s to present day. This information was directly passed as a personal gift to Les MacPhie, a geotechnical engineer and vice-president of SNC Lavalin subsidiary Geocon, of Montreal. Les compiled much of the raw data and sought expert analysis from industry professionals.
As for my part, I have been studying all aspects of the treasure hunt and the island's history for a good number of years. I?ve enjoyed full and unassisted access to all property owned by Oak Island Tours Inc; I have explored and photographed nearly every square inch of the surface, including time laps photography of the inter-tidal zone; I have conducted a GPS survey and produced geo rectified aerial photos with an error of less than 1? over 1000ft when calculated against theoretical values; I enjoyed access to all files, documents, correspondence and items gained through the hunt. Most of all I towed around my Garrett Master Hunter CX Plus w/depth multiplier and had some fun. I will not be sharing any confidential information, so please do not ask.
The following information has been presented at various industry lectures and to a crowd of enthusiasts at Explore Oak Island Days. I have Les' full permission to host and share this information.
This thread will (eventually) present about 62 images of data which detail the following:
1. Geological Conditions
- Becker Drilling 1967 (Archaeological)
- Warnock Hersey 1969 (Geotechnical/Archaeological)
- Golder Associates 1970 (Geotechnical/Archaeological)
- Detection Program Drilling 1993 (Geophysical)
2. Peter Beamish -1965/66 - Magnetic survey and other geophysical methods.
3. Barringer-1988-Magnetic and Very Low Frequency (VLF) surface surveys.
4. Oak Island Detection Program -1992/93-Review of geophysical methods, 1994 Down hole and cross hole surveys in five deep holes at Money Pit, 1994 Magnetic survey west of Money Pit.
5. Radarscan-2001-Ground Penetrating Radar (GPR) survey north of Hole 10X.
After this thread, I will start another that will strictly detail all geotechnical drilling. I think immediate area surrounding the money pit, in about a 500ft radius, must be the single most drilled into patch of ground on earth.
Posted on: February 23, 2009, 04:38:15 PM
The geological conditions of Oak Island (and Mahone Bay) are complex.
The area of treasure interest has always been the eastern side of Oak Island. Mahone Bay was subject to the influence of glacial action which deposited a 160ft deep layer of glacial till intermixed with other sands, clays, rocks and boulders ranging in sizes from a few inches to well over 20 feet in diameter One treasure told me that if he could rename the island, he would call it Rock Island.
Glacial action also introduced rocks from far away as the high arctic. It is through this glacial action of deposit, erosion, and natural wear which provides the differentiation to suggest some rocks show anthropological influence. Below this layer of glacial till is a layer of inconsistent anhydrate rock between 20ft and 40ft thick. It is through this layer which sea water might flow below the island. Further down is a layer of consistent anhydrate rock about 200ft thick. It is in this layer where evidence suggests man was at work. I will post more of this in my geotechnical drilling thread. Below the consistent anhydrate is Meguma slate bedrock. As any geologist will tell you, the second one detects anhydrate rock, natural sinkholes now become a consideration and concern.
Posted on: February 23, 2009, 05:06:12 PM
The next series of images are from geotechnical investigations (drilling).
The first image (11) is a topographical plan. Lines A-A and B-B are the reference lines for the next two images 12 and 13. This will be greatly expanded upon in a subsequent thread.
Image 13 has a photo which shows the operation of Robert Dunfield?s 70 ton crane and dragline bucket. This is how one does on an industrial scale.
I think everyone can start getting a better understanding of the stratigraphy below the test area.
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