Sandstone vs Arkose Characteristics Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Sandstone vs Arkose characteristics assist us to distinguish and recognize rocks.
The first such period is referred to as the Paleolithic, or Old Stone Age. The Old Stone Age began about 2 million years ago with the development of the first tools by Homo habilis and lasted until around 12,000 years ago.
Paleolithic Age-second part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC. Palaeolithic, Paleolithic. Stone Age - (archeology) the earliest known period of human culture, characterized by the use of stone implements. Lower Paleolithic-the oldest part of the Paleolithic Age with the emergence of the hand ax; ended about 120,000 years ago. Middle Paleolithic-the time period of Neanderthal man; ended about 35,000 years BC.