protocontinentn.

1952 Geologie en Mijnbouw 14 382/2 It is not difficult to imagine that the protocontinent formed during the first phase must have led to a rise of temperature..in the deep layers under the proto-ocean... Currents must have torn the protocontinent to pieces.

1977 Sci. Amer. Mar. 104/2 As long as the fairly coherent supercontinent could move in relation to its adjacent ocean floor, the ocean floor could have been subducted, partially melted and chemically differentiated to manufacture typical continental crust at the leading edge of the protocontinent.

1989 Sci. Amer. July 49/1 When the rock intruded into the lower crust is added, the total rises to between five and 10 million cubic kilometers, all emplaced within at most a few million years as the North Atlantic rift split the protocontinent.

1999 S. Rushdie Ground beneath her Feet (2000) viii. 218 Long aeons ago,..India made a tryst with destiny, breaking away from the mighty southern proto-continent of Gondwanaland and linking her destiny to the northern landmass of Laurasia.

1964 Geochim. et Cosmochim. Acta 28 14 The outer-mantle layer phase may be regarded as ‘protocontinental layer’.

1995 Canad. Jrnl. Earth Sci. 32 614 The Chan formation is interpreted to have formed in a marginal basin-like setting, adjacent to a previously rifted and attenuated protocontinental margin.