Arctic ice on pace for record melt
By: Elizabeth M Young
There are at least three Arctic ice melt records that will be broken soon, possibly within the next week. One is for the lowest level of arctic sea ice ever recorded. The others are for the fastest and the most Summer melting ever recorded. From...
Igneous rocks: Gabbro
By: J. Lang Wood
Igneous rocks are those that are formed by the cooling of magma that arises through the crust from the earth’s center. This category include a wide variety of sub-categories, such as felsic, alkic and mafic rocks. Gabbro is named after a town in Tuscany...
By: Helen Lovetigers
Gabbro is not an unusual rock; however, there are some qualities of gabbro that make it, like any other variety of rock, unique and individual. First, gabbro is intrusive and coarse-grained. This means that it formed over a very long period of time, deep within...
By: Hai Shunxi
Earth scientists separate the Earth's rocks into three general types based on the way in which the rock originally formed. One of those classes, the igneous rocks, includes those that form by cooling from red-hot liquid magma. Igneous rocks are further subdivided based on where...
By: Hai Shunxi
Amphibolite is a type of metamorphic rock that is rich in minerals of the amphibole group, of which the most common mineral is hornblende. Identification of this type of rock helps earth scientists to reconstruct the region's geologic history based on the conditions under which...
What is an artesian spring or an artesian well
By: Effie Moore Salem
Artesian springs or wells are formed by underground water that is water under pressure and when tapped will emerge to the earth’s surface with more force than would an underground water source without pressure. Although sometimes spoken of as artesian wells, those wells that...
By: Hai Shunxi
Earth scientists separate all rocks into three major groups: igneous, metamorphic and sedimentary. At that point, the process of identifying and classifying a rock has just begun. For each of the three major groups, there is a classification scheme to divide its members into ever-smaller...
By: Neha Joshi
Global warming has been a hot topic for discussion in most of the Global Conferences that are sponsored by the United Nations. Global warming refers to the rise in the temperature of the earth due to the emission of harmful gases like CO2. This emission...
Hurricane Isaac's impact on New Orleans and the surrounding areas
By: Sun Meilan
Seven years after Hurricane Katrina, which left New Orleans devastated, all eyes were on the city and its surrounding areas again as another Hurricane, this time called Isaac, hit. Fortunately, despite substantial damage, the hurricane wasn’t of the same ferocity as Katrina and the...
By: Julie Thomas-Zucker
Terminology that has to do with forest fire suppression includes words and phrases used by botanists, meteorologists and fire fighters. Forest protection managers use the scientific language that has to do with trees and wind direction. Weather language also plays a big part. Managers should...

 

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