Jurassic

Rock type: 
Age: 
165 millions years

Upper Jurassic succession of Easern Sardinia. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.

Rock type: 
Age: 
165 millions years

Sardinia, Gola di Gorropu. Upper Jurassic succession of Easern Sardinia. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.

Rock type: 
Age: 
165 millions years

Sardinia, Cala Luna. Upper Jurassic succession of Easern Sardinia. Karst cave in the gorge wall. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.

Rock type: 
Age: 
165 millions years

Sardinia, Cala Luna. Upper Jurassic succession of Easern Sardinia. Bioclastic limestones, oolitic cherty limestones and mudstones, of littoral-cricalittoral environment, with algae, benthic foraminifer and nerineids. Alternatively: Dogger-Malm.

Rock type: 
Age: 
170 millions years

Jurassic succession of Western Sardinia. Carbonatic shelf deposits: dolostones and dolomitic limestones, bioclastic limestones, oolithic and oncoid limestones, cherly limestones, mudstones, marly limestones and marls, with algae crinoids, brachiopods, bivalves, cephalopods, coprolites (pollens, spores, ostracods. Liassic (lower Jurassic) - Malm (upper Jurassic). J1-3

Rock type: 
Age: 
1700 millions years

Russia, Amur region, Haikta river valley, Berezite gold mine. Granodiorites in a pit wall with lamproite dikes (dark). Porphyry biotite-hornblende granodiorites. Granodiorites form a large Haiktinsky massif. A characteristic feature of granodiorites is the greenish color of plagioclase and the rocks themselves, due to the processes of chlorination, epidotization and carbonatization, accompanied by co-securitization and seritization of plagioclase. Pozdnestanovoy complex. Paleoproterozoic.

Lamproite dike - the third phase of the Amujikan complex. Upper Jurassic.