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Gold/Mining/Energy : SOUTHERNERA (t.SUF) -- Ignore unavailable to you. Want to Upgrade?

To: Elizabeth Andrews who wrote (6167)	8/22/2000 1:53:17 PM
From: teevee	Read Replies (1) \| Respond to of 7235

Elizabeth, If the rate of erosion is as you suggest then shouldn't there be alluvial diamond deposits like other cratons that host diamondiferous pipes and dykes? An interesting question and one I have considered from time to time. The crater and diatreme facies of most pipes were eroded well before glaciation. Glaciation destroyed the alluvial deposits that must have existed at one time. Since post-glacial isostatic rebound of the craton, ancient master drainages have re-established themselves (ie. the coppermine and back river drainages). To my knowledge, elevated strands on the artic coast line have been sampled for alluvial diamonds. Where else might one look? Could there be remnants of preglacial thalwegs preserved in these exhumed pre-glacial drainages? Are there buried pre-glacial tributary thalwegs hidden under glacial drift cover? These could be very attractive exploration targets as any pre-glacial thalweg remnants or tributaries along master drainages with kimberlite fields in the head lands could be extremely rich diamond bearing alluvials. Certain sections of some of these drainages appear to have been incised deep enough to provide some protection from glacial scour, especially where perpendicular to ice direction. Eskers and ice direction suggest another possible target are recent alluvials derived from reworked tills and outwash along the MacKenzie drainage. Interestingly, before Diamet made the initial discovery announcement, Chuck Fipke successfully had the staking regulations ammended so that hard rock mineral claims also acquire placer or alluvial tenure. Without such ammendment, other parties may have staked placer or alluvial claims over the pipes, hoping to have a lawyer argue the interpretation of the regulations based upon the notion that reworked kimberlite tuffs in a crater facies lake could be considered an exotic type of paleo alluvial diamond deposit:-)). regards, teevee

To: Elizabeth Andrews who wrote (6167)	8/22/2000 2:35:59 PM
From: russet	Read Replies (1) \| Respond to of 7235

It is thought (by smarter people than I) that the glaciers running and pillaging throughout our lands would have busted up and spread any existing alluvial deposits ( but did they get them all? Perhaps some are buried under glacial till-one would have thought that someone digging for gravel might have stumbled on one by now though, but perhaps not-it's a very big country. Maybe our roads are truly lined with diamonds like Jean de Crooked says!?!). It is possible as well that the climate in the 50 or so million years since these pipes etc, burped up their spew was not active enough (cold and desert-like as opposed to tropical rain forest) to allow such alluvial deposits to form in significant concentrations to allow their easy detection. Many of the remains of our diamond containing pipes and dykes are now under lakes which are frozen many months of the year, and not subject to much river action. These aforementioned great thinkers (thought not to be subject to brain farts like certain squished hamsters have frequently) have concluded that such climate and geological history probably accounts for the failure to find any diamond alluvial deposits in North America, that are found frequently in the more tropical and alluvially active regions of the world such as Southern Africa, and the equatorial regions of South America. Then again,...why do we have economic alluvial concentrations of gold and other minerals in B.C. and Alaska? What is different about these things. Perhaps Sesame Street knows (gggggggggggggggggg). Edit, Hello Mr. teevee,...I see you have similar thoughts. Slow day today with stockwatch down, allowing my mind to wander around. If you see it, please grab it and tell it to get back ASAP (ggggggggggggggggg).