Geochronological,Geochemical and Paleomagnetic Clues for Existence of a~2.1Ga Dyke Generation in the Mashishing Area,South Africa

Dyke swarms are widespread throughout the Kaapvaal Craton(KC)in South Africa and have been documented in some detail.Up to date,only the^2.9 Ga SE-trending and the^2.7 to^2.66 Ga radiating dyke arrays are

Morocco,North Africa:a Dyke Swarm Bonanza

Morocco hosts a Dyke Swarm Bonanza!Remarkable mafic dyke and sill swarms(plumbing system of Large Igneous Provinces,LIPs)have been recognized in the Sahara and in most inliers in the Anti-Atlas of southern

Refining the Stratigraphy of the Taghdout Group by Using the U-Pb Geochronology of the Taghdout Sill(Zenaga inlier,Anti-Atlas,Morocco)

The Anti-Atlas belt of southern Morocco is situated on the northern edge of the West African craton(WAC).It corresponds to a broad anticlinorium some 800 km long and 200 km wide,trending ENE-WSW,parallel to the

Neoarchaean-Palaeoproterozoic Mafic Dyke Swarms from the Singhbhum Granite Complex,Singhbhum Craton,Eastern India:Implications for Identification of Large Igneous Provinces and Their Possible Continuation on Other Formerly Adjacent Crustal Blocks

The Singhbhum craton of the eastern India consists of the Singhbhum Granite Complex(SGC)and the Chotanagpur Gneissic Complex(CGC)separated by the Singhbhum Mobile Belt(SMB).The CGC is intruded by Mesoproterozoic as well as Cretaceous mafic dykes;in

The Timing of the Palaeoproterozoic Great Oxidation Event using Dykes,Sills and Bolcanics of the Ongeluk Large Igneous Province,Kaapvaal Craton

The Neoarchaean to Palaeoproterozoic Transvaal Supergroup of the Kaapvaal Craton,southern Africa,is one of the best-preserved and most complete stratigraphic records across a critical in juncture in the Earth’s history.

Geochronology of Mafic Intrusions

Baddeleyite（ZrO2）is today recognized as a key mineral for dating the emplacement of mantle-derived rocks such as gabbros,alkaline（Si-poor）rocks and dolerite dykes and sills,but also in hydrothermally-driven

Age and Geochemical Characteristics of Major Mafic Dyke Swarms in the Southern Part of the Siberian Craton

Several generations of mafic dyke swarms of different ages and geochemical characteristics cut Precambrian rocks of the southern part of the Siberian craton(Irkutsk Promontory).Each generation of dykes is related to a

Proterozoic Dyke Swarms of the Siberian Craton and Their Geodynamic Implications

We present a summary of late Paleoproterozoic to Neoproterozoic mafic magmatism in the Siberian craton which allows us distinguish following main pulses of mafic dyke emplacement:1)1860–1850 Ma mafic dykes are localized within the