A 1-2 m thick lamprophyre
dyke in Beavertail State Park cross-cuts [S.
39]Ar technique and hence to better constrain the age of pre-rifting alkaline magmatism in southeastern New England and establish if it did, indeed, progress from north to south as suggested by other lamprophyre
ages from Avalonia (Fig.
Farther north, a swarm of carbonatite and lamprophyre
dykes was outlined in the course of mapping the Aigneau Lake area (Fig.
The size of the samples and the lateral distribution of the locations indicate that diamonds in lamprophyres
are widespread in the region and that further exploration may yield some positive finds, Calhoun said in a press release.
Initial fracture propagation can occur along a fault (Weinberg 1996), although no offsets are evident relative to the earlier east-trending lamprophyre
dykes at the map scale.
Conditions are now good for drilling as the ground is frozen and conditions are the same as the previous successful drill program near Hadishville, when NSDM discovered lamprophyre
015 Ga: An important intraplate event is the widespread Behm Canal event [#29a] of the Cordillera, which is also known as the Tertiary Lamprophyre
6-kilogram sample collected from a lamprophyre
The previous Phase one drill program near Hadashville discovered a lamprophyre
The pluton is cut by lamprophyre
and alkaline olivine diabase dykes of early Jurassic age (Cant et al.
Cabo Mining out of Vancouver has struck an interesting twist in Lorraine Township south of Cobalt with the discovery of diamonds in lamprophyre
and associated heterolithic breccias, similar to diamond discoveries made in Wawa, he says.
Phase 1: This resulted in the discovery of a lamprophyre
on Shire 1.