The southwest areas of Azna plain is located in Zagros zone tectonically and the north-eastern zone of is located in metamorphic zone of Sanandaj-Sirjan.
Zagros region and metamorphic zone of Sanandaj-Sirjan are separated each other by deep and great faults that begins from south mountains of Oshtorankooh and passing through Dorud goes to south of Borujerd city.
Glass-eel growth zone ages (increments from the outer boundary of metamorphic zone to elver check) were read as in Wang and Tzeng (1998).
Because ages from glass-eel growth zones (as opposed to total age) were in very close agreement with those of Wang and Tzeng (1998), one assumption for this inconsistency in total age is a difference in interpreting age in either the leptocephalus or metamorphic zone.
8 Table 4 Regression of collection week (1-26) against total age in days (with 95% confidence limits) and regression of glass-eel growth zone age (outer metamorphic zone to elver check on otolith) against total length (mm) for glass eels collected at Pivers Island, North Carolina.
Tectonic stacking of metamorphic zones
in Cheticamp River area, Cape Breton Highlands, Nova Scotia.
Svecofennian metamorphic zones
in the basement of Estonia.
Among the scientific accomplishments of the Coast Mountains project were the discovery of "tadpole" granitic plutons, demonstrating the generation of granite in deep root zones leading to bodily upward movement in the dilatant "heads"; and the discovery of the then youngest high temperature-high pressure metamorphic zones
in the circum-Pacific.
Those structures separate the sedimentary-volcanic Tallinn and mainly sedimentary Alutaguse metamorphic zones
Within this domain, metamorphic zones from low- to high-grade metamorphism have been observed.
In general, these zones fit well with the metamorphic zones typical of the Svecofennian interior in the Fennoscandian Shield.