Diatomites constitute a widely represented lithology in the Messinian sections of the circum-
mediterranean Neogene marginal basins. Although traditionally interpreted as genuine …

Hominins evolved in Africa during a period of overall regional cooling, drying, and
increasingly variable climate. Despite prevailing regional aridity since the mid-Miocene, data …

The Sahara is the largest hot desert on Earth. Yet the timing of its inception and its response
to climatic forcing is debated, leading to uncertainty over the causes and consequences of …

The Nile Basin contains a record of human activities spanning the last million years.
However, the interactions between prehistoric humans and environmental changes in this …

General properties of Vertisols are known world-wide, but these properties vary in different
areas due to specific environmental conditions. The mastery of the specific characteristics of …

In this work, clay located in Lake Chad Basin, were collected and investigated for their
physical, chemical, mineralogical and firing characteristics to evaluate their potential …

Alkaline (pH> 8.5) lakes have been common features of Earth's surface environments
throughout its history and are currently among the most biologically productive environments …

Abstract Past North African humid periods caused expanded vegetation over the Sahara,
due to northward tropical African rainbelt displacement, opening migration pathways for …

We analyzed phytolith and diatom remains preserved at 45 Miocene and Pliocene localities
dated between 8 and 1 Ma in northern Chad (16–17° N). Some of these localities yielded …

Current global warming scenarios suggest surface temperatures may attain warmth last
seen during periods of the early‐to mid‐Pliocene (5.3–3 Ma). Pliocene proxy reconstructions …