One of the mysteries of the English language finally explained.
(chiefly of rocks) relatively rich in both calcium and alkali metals.
- ‘Geologically it is characterized by large volumes of Early Paleozoic calcalkaline granites and volcanics interbedded with marine volcano-sedimentary rocks.’
- ‘Westward subduction of the Songpan-Ganzi oceanic lithosphere in the Late Triassic caused extensive calcalkaline volcanism and intrusion along the Yidun Terrane in the Late Triassic.’
- ‘In the Catalonian Coastal Range Ordovician volcanic acid rocks with calcalkaline affinity probably formed by partial melting of the crust in a post-collisional setting.’
- ‘The bulk of the plutonic rocks are calcalkaline in composition and range in age from Mid-Jurassic to Early Cretaceous.’
- ‘The Bulawayan LIP was brought to a close by deposition of the less well-known volcanosedimentary Cheshire unit and calcalkaline Maliyami Formation.’
- ‘All granite samples plot exclusively in the calcalkaline field on an AFM diagram.’
- ‘The c.12-10.5 Ma extrusion ages for the voluminous calcalkaline sequence in Sierra de Gata that are presented here have important implications for the plate-tectonic setting of the Alboran volcanic province.’
- ‘The Glen Urquhart sample contains a few zircons with an average age around 2320 Ma, which corresponds well to the timing of calcalkaline igneous activity in the Rae Province in the Labrador segment of Laurentia.’
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