Supercontinents signify self-organization in plate tectonics. Over the past~ 2 billion years,
three major supercontinents have been identified, with increasing age: Pangaea, Rodinia …

If we accept that a critical condition for plate tectonics is the creation and maintenance of a
global network of narrow boundaries separating multiple plates, then to argue for plate …

The Earth as a planetary system has experienced significant change since its formation c.
4.54 Gyr ago. Some of these changes have been gradual, such as secular cooling of the …

Just over 15 years ago, a proposal forwarded by Rogers and Santosh (2002) posited the
existence of a pre-Rodinia supercontinent which they called Columbia. The conjecture …

Many geological and geochemical changes are recorded on Earth between 3 and 2 Ga.
Among the more important of these are the following:(1) increasing proportion of basalts with …

Twenty-five years ago, initial plans for reconstructing the Rodinia supercontinent were being
drafted, based on the growing recognition of correlatable mid-Neoproterozoic (0.8–0.7 Ga) …

The bulk Earth composition contains probably less than 0.3% of water, but this trace amount
of water can affect the long-term evolution of the Earth in a number of different ways. The …

The earliest evidence for subduction, which could have been localized, does not signify
when plate tectonics became a global phenomenon. To test the antiquity of global …

Abstract The mid-Proterozoic (ca. 1850–850 Ma) is a peculiar period of Earth history in many
respects: ophiolites and passive margins of this age are rare, whereas anorthosite and A …

Eight lines of evidence indicate that the Orosirian Period in mid-Paleoproterozoic time was
characterized by plate tectonics: ophiolites, low T/P metamorphism including eclogites …