The Aravalli Hills look modest today but they sit on some of the oldest and most studied rocks in India. Geologists care about them because they preserve a long record of how a piece of the earth’s ...

The amount of pore space in most unweathered granite is too small to support a plant-based ecosystem. But porosity grows as intact rock interacts with surface waters beneath the soil. You have full ...

Neoproterozoic calc-alkalic and high-K calc-alkalic granodioritic to tonalitic plutons intruded Neoproterozoic low-grade metasedimentary rocks of the Cachoeirinha–Salgueiro (CST) and Alto Pajeú (APT) ...