collapse


* User Info

 
 
Welcome, Guest. Please login or register.
Did you miss your activation email?

* Who's Online

camper1

Dot Guests: 212 | Dot Users
Dot Hidden: 0

* Board Stats

  • stats Total Members: 13005
  • stats Total Posts: 130877
  • stats Total Topics: 18308
  • stats Total Categories: 5
  • stats Total Boards: 48
  • stats Most Online: 814

* Advertisers

Mining Claims
Gear Pan
The lil Gold Spinner
BC GOLD
The lil Gold Spinner
The Pocket Sluice

Author Topic: Need an expert identification....  (Read 8946 times)

0 Members and 1 Guest are viewing this topic.

Offline diamond jim

  • PPT Invited
  • *****
  • Posts: 285
  • Kudos: 11
Re: Need an expert identification....
« Reply #20 on: December 29, 2014, 03:43:00 PM »
Great info...many thanks for posting. Can't believe the size of the megaliths in that rock...awesome.
Jim

Offline NS Gold Seeker

  • PPT Invited
  • *****
  • Posts: 276
  • Province/State: Nova Scotia
  • Country: ca
  • Kudos: 7
  • Gold is good.
Re: Need an expert identification....
« Reply #21 on: December 29, 2014, 03:49:52 PM »
Big friggin Xenocrysts. Must have been 10 ft. across.
Ultra mafic mantle rocks in the area, normally volcanic tuffs don't host diamonds,
but cut by lamprophyre dykes, the pictures are there and the exploration is real.  
Hope you can relate your rocks to this area.  My sense is that there is a heat source and the dykes cut
through the diamondiferous mantle material, picking up pieces of the mantle as phenocrysts and
xenocrysts and transporting them into the tuff.  Metamorphism of the whole group later.
Anyway, diamonds with no kimberlites. Wild
Gold is good.