侵略 发表于 2025-3-26 23:11:09

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Rejuvenate 发表于 2025-3-27 01:27:43

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细胞 发表于 2025-3-27 06:52:28

The Exposed Crustal Cross Section of Southern Calabria, Italy: Structure and Evolution of a Segment it (5 – 6 km) resting on a mainly metabasic unit (2 km) in which zircons point to a magmatic formation age of about 550 m. y. The high proportion (75%) of granulite-facies, mainly pelitic metasediments characterize the lower crustal section. The pelitic rocks are highly restitic and a 40% peralumino

不能仁慈 发表于 2025-3-27 10:39:24

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lattice 发表于 2025-3-27 14:20:13

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PANT 发表于 2025-3-27 20:27:32

A Crustal Cross-Section for a Terrain of Superimposed Shortening and Extension: Ruby Mountains-East ly Mesozoic magmatic, metamorphic, and deformational history. In turn, this zone grades downward abruptly into a 1.5- to 2.0-km-thick, upper amphibolite facies Tertiary shear zone that forms the top of a mylonitic to nonmylonitic migmatitic infrastructure of variable age. This infrastructural zone c

Intersect 发表于 2025-3-27 22:49:18

Progress in Tectonic and Petrogenetic Studies in an Exposed Cross-Section of Young (~100 Ma) Continelith generation; (2) Major influxes of mantle-derived tonalitic to gabbroic magmas drove crustal-level melting and magma mixing; (3) Pre-existing sialic components within the batholithic magmas were contributed primarily from partial to complete melts of craton derived metasedimentary material; (4)

大厅 发表于 2025-3-28 05:16:43

Characteristics of a Continental Margin Magmatic Arc as a Function of Depth: The Skagit-Methow Crustis observed only below the uppermost limit of voluminous middle crustal plutons at about 12–14 km depth in the crustal section. Assuming the onset of ductility in quartz represents a high strength gradient in the crust, the high strength “lid” at the brittle-ductile transition is suggested to have c

天文台 发表于 2025-3-28 06:50:42

Crustal Formation at Depth During Continental Collisionarallel to the shear zone boundaries. During uplift, strain was concentrated in the ductile shear zones. If the section had not been exhumed, seismic reflection profiling would show shallow dipping reflectors in the deep crust due to the contrast in density and fabric of the layers.

发表于 2025-3-28 11:27:38

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查看完整版本: Titlebook: Exposed Cross-Sections of the Continental Crust; Matthew H. Salisbury,David M. Fountain Book 1990 Kluwer Academic Publishers 1990 Deformat