on April 15, 2022
What are the different types of lava?
GeologyLavas, particularly basaltic ones, come in two primary types: pahoehoe (pronounced ‘paw-hoey-hoey”) and aa (pronounced “ah-ah”). Both names, like a number of volcanological terms, are of Hawaiian origin. A third type, pillow lava, forms during submarine eruptions. What are the 3 main types of lava? There are three basic types of magma: basaltic, andesitic, and
on April 15, 2022
Do they still use the Richter scale?
GeologyEarthquakes were reported on the Richter scale, a mathematical formula invented by Caltech seismologist Charles Richter in 1935 to compare quake sizes. But no one uses the Richter scale anymore in the media or in science. What replaced the Richter scale? The Richter Scale It was replaced with the Moment Magnitude Scale, which records all
on April 15, 2022
What can destroy fossils?
GeologyOnce buried, the fossil and surrounding rock might undergo extreme pressure and heat, and the fossils could melt. Once fossils are formed, they might be washed away by streams, moved by glaciers, carried by scavengers, or caught in rockslides. Weathering by wind, water, and sun can destroy a fossil by wearing it away. What can
on April 15, 2022
How do Flute marks form?
GeologyFlute marks are made by strong eddies (vortices) in the current. These scour the underlying mud deeply at first, but then weaken and widen as they move on down current. In which direction was the current flowing which left these flute casts? (A. from left to right). What do Flute marks suggest? flute mark A
on April 15, 2022
What type of rocks are found in the Blue Ridge region of Virginia?
GeologyThe Blue Ridge province is a mountainous belt stretching from Pennsylvania southwest to Georgia. The mountains are made of highly deformed metamorphic rocks of largely Precambrian ages. These include schists, gneisses, slates, and quartzites, and are extensively intruded by igneous bodies. What are the two basic types of rocks in the Blue Ridge? The Blue
on April 15, 2022
What skills do you need to become a mineralogist?
GeologyBecoming a mineralogist requires at least a bachelor’s degree, usually in mineralogy, geology, or sometimes engineering. These programs focus on geology, chemistry, other sciences, and math. Some mineralogist jobs are posted as engineering positions. Is a mineralogist a geologist? Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure,
on April 15, 2022
What are the types of volcano?
GeologyThe Three Classic Types of Volcanoes Cinder Cone Volcanoes. Composite Volcanoes (Stratovolcanoes) Shield Volcanoes. What are the 5 types of volcanic? different types of volcanoes of volcanoes that can be found in nature are such as composite volcanoes, shield volcanoes, cinder cones, spatter cones and complex volcanoes. What are main types of volcanoes? Geologists generally
on April 15, 2022
What is a terminal moraine made of?
GeologyA terminal, or end, moraine consists of a ridgelike accumulation of glacial debris pushed forward by the leading glacial snout and dumped at the outermost edge of any given ice advance. It curves convexly down the valley and may extend up the sides as lateral moraines. How are terminal moraine created? Terminal moraines form when
on April 15, 2022
Why do plants grow well in volcanic soil?
GeologyThese minerals include sulfur, potassium, and phosphates, which plants often have a hard time getting. When combined with heavy rainfall, volcanic soil becomes very fertile, or good for growing plants. Is volcanic soil good for plants? By adding volcanic rock dust back to the soil, it makes it accessible to plant roots as soon as
on April 15, 2022
Why is the moon no longer geologically active?
GeologyThe moon is no longer geologically active because: it is small so has lost most of its internal heat. Is the Moon still geologically active? In 2012, new observations showed surface features, called graben, which form where the crust has pulled apart; these features are evidence that the Moon is expanding in some places. These