What is the difference between primary and secondary minerals?
GeologyThe key difference between primary and secondary minerals is that primary minerals are formed from primary igneous rocks whereas secondary minerals are formed from weathering of primary rocks. A mineral is a naturally occurring, inorganic solid substance that has a well-ordered chemical structure. What is a secondary mineral? When rock minerals undergo a transformation process
What are characteristics of sedimentary rocks?
GeologySedimentary rocks can be formed only where sediments are deposited long enough to become compacted and cemented into hard beds or strata. They are the most common rocks exposed on the Earth’s surface but are only a minor constituent of the entire crust. Their defining characteristic is that they are formed in layers. What are
What was Charles Darwin job on the ship?
GeologyIn 1831, Charles Darwin received an astounding invitation: to join the HMS Beagle as ship’s naturalist for a trip around the world. The life of Charles Darwin “Charles Darwin was born in England on February 12, 1809. His father wanted him to become a doctor, but the young man was more interested in nature. He
What is fast mass wasting?
GeologyMass wasting is the movement of rock and soil down slope under the influence of gravity. Rock falls, slumps, and debris flows are all examples of mass wasting. Often lubricated by rainfall or agitated by seismic activity, these events may occur very rapidly and move as a flow. What is rapid mass wasting? In rapid
What are the types of divergent boundaries?
GeologyThere are two types of divergent boundaries, categorized by where they occur: continental rift zones and mid-ocean ridges. What type of boundary is divergent? A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface,
Which terrestrial planet has the youngest surface?
GeologyWhy does Earth have the youngest surface of all the terrestrial planets today? the Appalachian Mountains. Why does Earth have the youngest surface of all the terrestrial planets today? It is the largest terrestrial planet so its interior has not cooled too much. It is not so close to the Sun that it has lost
What are three types of convergent boundaries examples?
GeologyThere are three types of convergent plate boundaries: oceanic-oceanic boundaries, oceanic-continental boundaries, and continental-continental boundaries. Each one is unique because of the density of the plates involved. What are 3 examples of convergent boundaries? Three types of convergent boundaries are recognized: continent‐continent, ocean‐continent, and ocean‐ocean. Continent‐continent convergence results when two continents collide. … Ocean‐continent convergence
What are the 5 forces of mechanical weathering?
GeologyThe 5 types of mechanical weathering include thermal expansion, frost weathering (or ice wedging), exfoliation, abrasion, and salt crystal growth. What are the 5 forces of weathering? Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the
How does the moment magnitude scale work?
GeologyThe moment magnitude scale is based on the total moment release of the earthquake. Moment is a product of the distance a fault moved and the force required to move it. It is derived from modeling recordings of the earthquake at multiple stations. How does the moment magnitude scale work for kids? The moment magnitude
Where does compaction and cementation occur?
GeologyRainforests, dry forests, sand dunes, mountain streams, lakes, rivers, oceans, beaches, and deltas are just a few examples of where compaction, and eventually cementation, can occur. What rock is cementation and compaction? sedimentary rock After compaction and cementation the sedimentary sequence has changed into a sedimentary rock. Sedimentary rocks like sandstone, shale and limestone differ