calcite reaction
DESCRIPTION
Calcite Reaction. Calcite is composed of calcium, carbon and oxygen CaCO 3 = Calcium Carbonate Found naturally as calcite and chalk Acid reacts and gives off carbon dioxide (CO 2 ). Formation of limestone. - PowerPoint PPT PresentationTRANSCRIPT
Calcite Reaction
• Calcite is composed of calcium, carbon and oxygen
• CaCO3 = Calcium Carbonate
• Found naturally as calcite and chalk
• Acid reacts and gives off carbon dioxide (CO2)
Formation of limestone
• Calcium carbonate becomes so concentrated in the sea water that calcite crystallizes out of the sea water to form limestone.
• Most limestone forms with organisms usually found at the bottom of shallow seas.
Fossil Groups
Corals• Sea creatures• Live solitary or in colonies
Brachiopods• Shellfish • Attached to sea bottom
Bivalves• Shellfish • Two hinged shells• Examples are clams and
musselsGastropods• Snail like animals• Single shell
More Fossil Groups
Trilobites• Extinct sea creatures• Earliest form of arthropod
Crinoids• Known as sea lilies• Marine creatures that
attach to a seabed
Plant Fossils• Ferns are typical of
floodplains and swamps
Fossil Evidence
Kaibab Formation• Braciopods/ sponges• 260 million years old
Toroweap formation• Brachiopods, bryozoans• 260 million years old
Coconino Sandstone• Fossils of animal tracks• Lizard tracks• 270 million years old
Hermit Shale• Fern and insect wings• 275 million years old
Supai Group• No Fossils• 325-275 million years old
Redwall Limestone• Braciopods • 360 million years old
Temple Butte Limestone• Primitive armored fish,
conodonts• 385 Million Years
Muav Limestone• Brachiopods, trilobites• 530 million years old
Bright Angel Shale
• Trilobites, burrows, tracks and trails of snails worms and trilobites
• 540 million years old
Arthropods- insects, arachnids, crustatians
Tapeats Sandstone• Tubeworm burrows• 545 million years old
Vishnu Schist• No fossils• 1.7 billion years old