Peralkaline igneous rocks are defined by a molar (Na+ K)/Al ratio> 1 and are subdivided into
miaskitic and agpaitic varieties depending on their mineralogy. In the more common …

Abstract Despite Nb and Ta being considered as 'geochemical twins', most Ta mineral
deposits are associated with muscovite-bearing peraluminous granites and related …

Although widely used, classification schemes for granitic rocks have until now failed to
separate slab failure from arc magmatism in collisional orogens. Our previous work showed …

We recognize eight types of ferroan granitoid that can be distinguished on the basis of major
element chemistry. These include alkalic granitoids that may be metaluminous or …

The origin and tectonic setting of the Mesoproterozoic (1.50–1.34 Ga) granite–rhyolite
Provinces of the midcontinent region of the United States, and the coeval A-type granite …

Combined whole-rock, U–Pb zircon and monazite dating, in situ zircon (MC)-SF-ICP-MS Lu–
Hf-isotope data are reported for more than 20 Archaean granitoid samples to constrain …

The key to defining the termination of accretion in an accretionary orogen is to recognize the
initial magmatic processes that are generated at the time of ocean closure. We present new …

Palaeoarchaean granitoids are exposed over wide area in the Singhbhum craton whose
origin and role in crustal evolution are not well constrained. This study presents whole-rock …

A new view on the genesis of, and links between, the Sierra Madre Occidental silicic large
igneous province, the Comondú Group of Baja California, and the Gulf of California rift has …

Numerous microcontinents are known to occur in the Central Asian Orogenic Belt (CAOB),
one of the largest accretionary orogens and the most significant area of Paleozoic crustal …