The folding and metamorphism increased in intensity to the south and southeast, and produced the isolated gneissic 1, 755-million-year-old Watersmeet Domes which straddle the border of Michigan and northeastern Wisconsin.
22.
There are east-northeast-to east-trending faults in the gneissic rocks south of the Great Lakes tectonic zone in Minnesota, south of the Midcontinent Rift System in Wisconsin and in the Upper Peninsula of Michigan.
23.
The Peninsular Gneissic Complex ( PGC ) is the most dominant rock unit in the area and includes granites, gneisses and migmatites, while the soils of Bangalore consist of red laterite and red, fine loamy to clayey soils.
24.
Schistosity and gneissic banding ( the two main types of foliation ) are formed by directed pressure at elevated temperature, and to interstitial movement, or internal flow arranging the mineral particles while they are crystallizing in that directed pressure field.
25.
This basement also contains slices of Archean gneissic rock up to 3.73 Ga-old; an age similar to those of the Churchill Province ), which can indicate that TMZ represents the recycling of parts of this province.
26.
The contact zone between the upper granite and the lower gneiss is both sub-horizontal and semi-gradual, and the gneissic xenoliths have a tabular form, which heavily suggests that they were captured from a magma chamber s floor by thermal detachment.
27.
The " Encyclopaedia of Indian Archaeology " describes a port-hole cist thus : " a box-like burial chamber, largely underground and built of gneissic orthostats floorstone and capstone but arranged inside a rectangular pit scooped out of the native laterite.
28.
In the narrow valley stretch of the Vacha River where the project is located, the geological formation consists of sound granites and gneissic formations except for a small patch of about, which is the fractured zone of mylonites, which was filled up with concrete.
29.
The Potosi Gneiss, and the manganiferous garnet horizon, are considered key indicators of original bedding orientation ( S0 ) and are thus key exploration targets, as there is a proven association of anomalous lead and zinc within the gneissic stratigraphy with these horizons on a regional basis.
30.
Regional metamorphism tends to make the rock more indurated and at the same time to give it a foliated, shistose or gneissic texture, consisting of a planar arrangement of the minerals, so that platy or prismatic minerals like mica and hornblende have their longest axes arranged parallel to one another.
