By bedrock I mean solid rock, exposed at the Earth’s surface or buried at shallow depths. A great many geologists spend most of their professional lives studying the bedrock of the Earth’s continents.
Sandstones are made largely of sand-sized grains between 1/16 and 2 mm. They are composed of framework grains and have interstitial matrix, cement, and or pore space between these grains. They are c...Sandstones are made largely of sand-sized grains between 1/16 and 2 mm. They are composed of framework grains and have interstitial matrix, cement, and or pore space between these grains. They are classified based on the relative abundance of quartz, feldspar, and lithic grains and the nature of the interstitial materials.
By bedrock I mean solid rock, exposed at the Earth’s surface or buried at shallow depths. A great many geologists spend most of their professional lives studying the bedrock of the Earth’s continents.
