21. The U Pb zircon dates from orogenic granites are of the most reliable aging determinants. 22. The orogeny of an orogen is only part of the orogen's orogenic cycle. 23. The advent of plate tectonics has explained the vast majority of orogenic belts and their features. 24. Dewey was educated at Bancroft's School and orogenic history of the Himalayan mountain range. 25. The zeolite facies is generally considered to be transitional between orogenic regional metamorphism are not required. 26. The gold bearing rocks were formed by the orogenic processes that created the Otago Schist belt. 27. It includes a number of different blocks of the Archean basement, separated by orogenic belts. 28. Sea-bottom and near-shore material may cover some or all of the orogenic area. 29. This granite is Leucratic, an indicative sign of granite intruded within an orogenic mountain building event. 30. The bending of the lithosphere under the orogenic load controls the drainage pattern of the foreland basin.
