--Cont'd-- In discussing Collum's "The Bad Heart Formation" abstract, Marum president Rick Boulay offered the following comments (as always, posted here with his knowledge):
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The impact crater is seismically obvious and seems to be about 100 million years old. The central uplift is massive and the edge effects are pronounced. The crater is 5km across and has plenty of vertical seismic features associated with it. It has about 800m of Upper Cretaceous sedimentary cover over it. There is a hump over the central uplift that extends to the surface. Till cover is probably 5m to 10m.
It would be useful in terms of gaining an understanding of the physical environments which existed when the pipes were emplaced. Marum has no connection with the writer except that our policy is to make our data and drill samples available to the AGS and other scientific institutions such as the Tyrrell Museum. I am aware of the impact crater, or massive seismic feature, and that it is not on Marum land but is nearby. It is not exactly subtle. Also, I'm about 70 percent convinced that it is an impact structure. The 30% doubt is created by atypical edge features, the large size of the "central uplift" and the lack of total chaos immediately below the transient "crater" floor. The structure's origin is not part of our exploration model nor does it create any local structures that are obvious exploration features. Seismically, it's really cool.
The impact crater business, while legit material for speculative discussion, is still a relatively novel concept and can overshadow the really remarkable hydrothermal/volcanic nature of the area.
[Boulay goes on,]
Collum's paper states:
The general distribution of marine and coastal facies in the Chinchaga region indicate that some of these pipes may have been extruded on the vegetated coastal plain of the western shoreline of the seaway.
This independently supports our exploration philosophy, unique to the Chinchaga area, that while pipes are important targets not to be ignored, the mega-deposits may be shoreline clastics with possible wedges of concentrated diamonds. The modern analogue are the beach deposits along the Namibian coasts. The tonnage potential of these deposits is on a scale with the oilsands of northeast Alberta, as are the mining methods. In sum, the ACA pipes were blown into a marine environment greater than 30 metres deep while there is evidence in the Chinchaga of fine and coarse grained sediments with a high proportion of kimberlitic components that were derived nearby. Interesting.
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Plenty to think about!
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Update re. MARUM current events:
Marum has had a field crew on the MMU/MIX jv land for 10 days and they are coming back to town shortly. Also, an APEX crew will be heading into the 100% Marum land in a couple days - - hunting for outcrop and taking samples in preparation for winter drilling.
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Cheerio,
-j
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Marum WebSite: marumresources.com
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Happy Thanksgiving folks, as it applies!
- Monday's a Holiday |
