Geological Contact

Contact, Geological


the contact surface of rocks that form contiguous sections of the earth’s crust. Geological contacts are classified as normal, or stratigraphic, when sedimentary or effusive rock is deposited on older rock; intrusive, if comparatively young intrusive rock has broken through older rock, causing various changes in it; and tectonic, when rocks of different content, origin, and age adjoin along the surface of a tectonic fault.

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The claims are located along a geological contact trend previously explored in the 1890's when three short adits were dug out of the hillside.
The Lennie Property is strategically located northeast of the Red Lake Gold Mines complex along the same geological contact that hosts the major gold mines in Red Lake.
The 20% Fe level is natural cut-off imposed by the geology as generally the limit of the resource wireframe coincides with the geological contact of the BIF.
The northern and eastern parts of the property cover up to 4,000 metres of strike length of the regionally significant geological contact between prospective volcanic and sedimentary rocks of the Jurassic Salmon River Formation.
The sampling was performed on a peatland covering a presumed geological contact between granite and paragneiss.
Preliminary modelling of the results of this work suggest that a shallow dipping zone of Yttrium enrichment occurs as a blanket immediately above the high grade Phosphate zone at the faulted geological contact of the Inca Formation (top - Yttrium) and Beetle Creek Formation (bottom - Phosphate).
The location of the key geological contact between the sedimentary rocks and the monzonite porphyry changes strike from north-west-southeast strike adjacent to the main Buccaneer Porphyry zone to more north-south strike in the area of north-west extensions which is likely due to fault offsets.
The table summarizes the assay results which were categorized according to the nature of the geological contact.
The recognition of the geological contact between the intrusive rocks and the sedimentary rocks has important implications for regional prospecting.
The table summarises the assay results which were categorised according to the nature of the geological contact.
It has a width of about 10 meters and is located stratigraphically along the same geological contact as zone no.