Qinling orogenic belt
North-South China Block
The Northern part of South China Block contains one of the oldest rock complexes in China, which is Kongling complex from the Archean Eon.

Qinling orogenic belt

Section Title: North-South China Block
Table Section Text: The Northern part of South China Block contains one of the oldest rock complexes in China, which is Kongling complex from the Archean Eon.

Geological Group	Major Geology(rock type)	Formation time

South-North China Block	Basement rock Marine facies Tillite Continental margin facies Pluton intrusion	Late Archean - Late Proterozoic Middle Proterozoic Late Proterozoic Cambrian - Ordovician Cretaceous

Kuanping group	Metasedimentary rocks: greenschist, amphibolite, micaschist Marble Ophiolite	Early Proterozoic Early Proterozoic Middle Proterozoic

Erlangping group	Ophiolite Clastic sedimentary rock and carbonate	Early Paleozoic

North Qinling Block	Gneiss, amphibolite & marble Clastic sedimentary rocks	Early Proterozoic and early Paleozoic Carboniferous - Permian

Shangdan suture zone	Ophiolite Volcanic and sedimentary rock	Early Cambrian - Early Silurian Early Paleozoic

North-South Qinling Belt	Basement rock Limestone Shale Sandstone	Archean - Late Proterozoic Ordovician, Devonian - Carboniferous Silurian Late Permian - Triassic

South-South Qinling Belt	Basement rock with alkaline dyke intrusion Shallow marine sedimentary facies Terrestrial sedimentary facies	Precambrian (+Silurian) Proterozoic to Mid-Triassic Late Triassic - Cretaceous

Mianlue suture zone	Ophiolite Meta-basaltic rock Volcanic rock	Early Carboniferous - early Jurassic

North-South China Block	Basement rock (Kongling complex) Shallow marine carbonate Carbonate + Black shale Limestone Shale + siltstone Turbidite Sandstone + limestone	Archean Cambrian Late Cambrian Ordovician Silurian Devonian Carboniferous

Cretaceous: 142 - 65.5 million years ago Jurassic: 205 - 142 million years ago Triassic: 250 - 205 million years ago Permian: 292 - 250 million years ago Carboniferous: 354 - 292 million years ago Devonian: 417 - 354 million years ago Silurian: 440 - 417 million years ago Ordovician: 495 - 440 million years ago Cambrian: 545 - 495 million years ago Proterozoic: 2.5 - 0.545 billion years ago Archean: 3.8 - 2.5 billion years ago

Sentence(s)

Ophiolites were formed during early Cambrian to early Silurian.

final_sentence: Ophiolites were formed during early Cambrian to early Silurian.