Why is pumice porous?
GeologyThe pore spaces (known as vesicles) in pumice are a clue to how it forms. The vesicles are actually gas bubbles that were trapped in the rock during the rapid cooling of a gas-rich frothy magma. The material cools so quickly that atoms in the melt are not able to arrange themselves into a crystalline
Is the Mercalli scale quantitative or qualitative?
GeologyThe Richter Scale is quantitative, and measures the actual energy of an earthquake, while the Mercalli scale is qualitative, and measures damage caused by an earthquake. Is the Mercalli scale quantitative? Modified Mercalli Intensity Scale This is a semi-quantitative scale used to evaluate ground shaking and damage. This scale is composed of 12 increasing levels
Where are fault lines located in Texas?
GeologyCentral Texas happens to have one major fault line running through it. The Balcones Fault starts near Del Rio, runs along I-35, and curves towards Dallas. In fact, this fault formed Mount Bonnell. The Balcones fault is not actively moving, and is considered one of the lowest risk zones for earthquakes in the country. Texas
What island is Kalapana on?
Geologythe Island of HawaiʻiHawaiʻi in the Hawaiian Islands. The town was the original location of the Star of the Sea Painted Church. What is Kalapana known for? In the Puna District, in 1990, lava from Kilauea volcano engulfed Kalapana, a historic Hawaiian fishing village and residential area, as well as the famous black sand beach
How do you kill a magma cube?
GeologyTo kill a large magma cube, you need to inflict 16 points of damage to it. for health. This gives a medium magma cube 4 health points (because 1 heart = 2 health points). To kill a medium magma cube, you need to inflict 4 points of damage to it. What is the easiest way
Does LSU have criminology?
GeologyAn interdisciplinary field that studies the causes, manifestations, consequences, control, and prevention of criminal behavior at both the individual and societal levels. Does LSU offer Criminal Justice? LSUA offers a B.S. Criminal Justice: If you are interested in courts, corrections, or law enforcement at the local, state, or federal levels, this is the track for
How heavy is a cubic meter of sandstone?
Geology2.32 tonnes per cubic metre Weights of materials. Dry sand fine = 1.28 tonnes per cubic metre sandstone = 2.32 tonnes per cubic metre Lias = 2.48 tonnes per cubic metre granite = 2.72 tonnes per cubic metre How heavy is 1m3 of stone? 1 m3 = 1.5t – 2.2t of crushed stone depending on
Was there an earthquake in California in 1988?
GeologyThe 1988 Upland earthquake caused minor damage in the epicentral area, but would have been of relatively little note were it not for the possibility that it may have been triggered by the Whittier Narrows earthquake — 9 months earlier, and 20 km away. Was there an earthquake in California in 1987? An earthquake in
How do archaeologists date objects?
GeologyArcheologists use several methods to establish absolute chronology including radiocarbon dating, obsidian hydration, thermoluminescence, dendrochronology, historical records, mean ceramic dating, and pipe stem dating. What are dating methods in archaeology? There are two main categories of dating methods in archaeology: indirect or relative dating and absolute dating. Relative dating includes methods that rely on the
What kind of mineral is Jasper?
GeologyQuartz Jasper Category Mineral Formula (repeating unit) SiO2 (with varying impurities) Crystal system Hexagonal Crystal class Quartz (Chalcedony) What type of rock is jasper? Jasper is an opaque form of Chalcedony, which is a microcrystalline variety of the mineral Quartz. It often contains an abundance of impurities, and therefore some regard it as a rock