In the geological sciences it has only recently been recognized how important the process of
impact cratering is on a planetary scale, where it is commonly the most important surface …

A carbon-rich black layer, dating to≈ 12.9 ka, has been previously identified at≈ 50 Clovis-
age sites across North America and appears contemporaneous with the abrupt onset of …

The Indian Ocean Nodule Field (IONF) is significant from several points of view. Roughly
bordered by 10° S to 16° 30′ S and 72° E to 80° E and located within the Central Indian …

The investigation of shallow subtidal, inter-reef depression, and inter-reef platform sections
from central Hunan of China shows that a transgression–regression cycle occurred in the …

The Indian Ocean Nodule Field: Geology and Resource Potential, Second Edition, provides
a view of the most recent studies along with classical theories starting from the 1960s. New …

The onset of> 1000 years of Younger Dryas cooling, broad-scale extinctions, and the
disappearance of the Clovis culture in North America simultaneously occurred 12,900 years …

We have uncovered a thin layer of magnetic grains and microspherules, carbon spherules,
and glass-like carbon at nine sites across North America, a site in Belgium, and throughout …

We report the occurrences of magnetite-rich spherules, Ti-rich particles and possibly
nontronite recovered at 19° S and 76° E from the pelagic clay in the Central Indian Ocean …

As a potential Te reservoir for the global budget, the occurrence, material sources, migration
and enrichment mechanism of Te in deep-sea sediments remain unclear. Based on the …

Cosmic spherules have largely been classified into S-, I-, and G-types according to their
compositions, and are identified to have chondritic or achondritic materials as precursors. A …