boulder train

boulder train

[′bōl·dər ‚trān]
(geology)
Glacial boulders derived from one locality and arranged in a right-angled line or lines leading off in the direction in which the drift agency operated.
References in periodicals archive ?
800m+ mineralized boulder train indicates broad mineralized zone
Similarly, the target containing the source of the Pow Bay uranium mineralized boulder train, north-east of the Rabbit Lake deposit, is thought to be under the lake-covered portion of the southern part of the Collins Bay extension property.
The sample submitted for caustic fusion was collected along a transect that cut across the boulder train at right angles to the ice direction.
These early samples were from within a north northwest trending boulder train of altered volcanic rocks.
Recent mapping has located an outcrop near the head of the South Prospect boulder train which contains a narrow, radioactive biotite - magnetite rich shear zone.
The Anuri showings and boulder train continue to provide high grade samples with four of the 20 samples taken this summer grading over 5 g/t Au.
Exploration including combined airborne magnetic and radiometric surveys, rock and soil geochemistry and diamond drilling, outlined a uraniferous boulder train along the west side of Duddridge Lake, which extends over an area of about 100 by 1600 m.
Seven of the properties covered by these licenses contain drilled uranium deposits and one contains an uranium boulder train occurrence.
Drilling of priority land-based targets will include the AV-5 kimberlite boulder train which returned encouraging initial microdiamond counts from surface samples collected in 2004.
MPH postulates their origin is possibly granitic boulder trains, uraniferous boulders, and/or pegmatite occurrences.
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