The Earth Sciences Portal
(also known as geoscience
, the geosciences
or Earth Science
) is an all-embracing term for the sciences
related to the planet Earth
. They are a special type of planetary sciences
which deal with the structure and composition of the Earth, its origins, physical features, changing aspects, and all of its natural phenomena. Earth is the only planet known to have life, and hence the only planet with biological processes and a biosphere.
The major disciplines of Earth sciences use physics, mathematics, and chemistry to build a quantitative understanding of the principal areas or spheres of the Earth system. As in many sciences, the Earth can be studied both experimentally and theoretically. Also, there are both reductionist and holistic approaches to Earth Science.
Although mining and precious stones have been in human interests throughout the history of civilization, their development into the sciences of economic geology and mineralogy did not occur until the 18th century. The study of the earth, particularly palaeontology, blossomed in the 19th century and the growth of other disciplines like geophysics in the 20th century led to the development of the theory of plate tectonics in the 1960s, which has had a similar impact on the Earth sciences as the theory of evolution had on biology. Earth sciences today are closely linked to climate research and the petroleum and mineral exploration industries.
Applications of Earth sciences include the exploration and exploitation of mineral and hydrocarbon resources, cartography, weather forecasting patterns, and warning of volcanic eruptions. Earth sciences are related to the environmental sciences as well as the other subfields of planetary astronomy.
Yosemite National Park
(pronounced "yo-SEM-it-ee", /joʊˈsɛmɨtiː/
) is a national park
located largely in Mariposa
and Tuolumne Counties
, United States
. The park covers an area of 761,266 acres or 1,189 square miles (3,081 km²) and reaches across the western slopes of the Sierra Nevada
mountain chain. Yosemite is visited
by over 3.5 million people each year, many of whom only spend time in the seven square miles (18 km²) of Yosemite Valley
. Designated a World Heritage Site
in 1984, Yosemite is internationally recognized for its spectacular granite
, clear streams
, Giant Sequoia
groves, and biological diversity
. Almost 95% of the park is designated wilderness
. Although not the first designated national park
, Yosemite was a focal point in the development of the national park idea, largely owing to the work of people like John Muir
. Yosemite is one of the largest and least fragmented habitat
blocks in the Sierra Nevada, and the park supports a diversity of plants
. The park has an elevation range from 2,000 to 13,114 feet (600 to 4,000 m) and contains five major vegetation zones
woodland, lower montane
, upper montane, subalpine
, and alpine
. Of California's 7,000 plant species, about 50% occur in the Sierra Nevada and more than 20% within Yosemite. There is suitable habitat or documentation for more than 160 rare plants in the park, with rare local geologic formations and unique soils
characterizing the restricted ranges many of these plants occupy.
Satellite image of Cyclone Gafilo, a powerful Category 5 tropical cyclone which struck Madagascar in March 2004, causing devastating damage. This was taken just before landfall, when the system was at its peak intensity about 333 km (207 mi) east of Madagascar, with sustained windspeed of 260 km/h (160 mph). At least 250 people were listed dead, with more missing, and 300,000 people were left homeless due to Gafilo.
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Wed, 08 May 2013 11:29:41 -0700
The Shell Geoscience Laboratory is being officially opened at an event on Thursday and will be attended by the secretary of state for energy and climate change, Ed Davey. The university's department of Earth sciences already accepts funding from Shell ...
Thu, 09 May 2013 06:39:32 -0700
Students and alumni of Oxford University will protest this afternoon at the opening of a new lab in its Earth sciences department that is funded with £5.9m from oil company Shell. Campaigners say the partnership – which will see the climate and energy ...
Eureka! Science News
Thu, 23 May 2013 12:28:28 -0700
But new findings by a team of researchers, including Robert Moucha, assistant professor of Earth Sciences in The College of Arts and Sciences, reveal that the shoreline has been uplifted by more than 210 feet, meaning less ice melted than expected ...
PR Newswire (press release)
Mon, 29 Apr 2013 03:46:58 -0700
Elsevier, a world-leading provider of scientific, technical and medical information products and services, and IEDA (Integrated Earth Data Applications), an NSF-funded data facility in the geosciences at the Lamont-Doherty Earth Observatory of Columbia ...
Fri, 24 May 2013 03:06:22 -0700
The latest study is partially based on a 2008 paper from co-author Robert Moucha, an assistant professor of Earth Sciences at Syracuse University. In that earlier study, Moucha used evidence from the North American east coast and African west coast to ...
Fri, 24 May 2013 03:14:34 -0700
But later, we could explore business prospects too," Shailesh Nayak, secretary in the Ministry of Earth Sciences, told IANS. "The science of the region is important as whatever happens in the Arctic climate effects the Indian subcontinent, especially ...
Arizona Daily Sun
Fri, 24 May 2013 03:42:46 -0700
He was a Professor (Of Earth Sciences) at Northern Essex Community College in Haverhill, MA from Sept 1, 1963 - March 2, 1991. Also, He served as Grand Knight of The Knights of Columbus in Peabody, MA in the late 1960's. He is survived by his 4 ...
Mon, 29 Apr 2013 13:44:13 -0700
Researchers suspected that organisms have been eating other organisms for a very long time — about 3.5 billion years, said study researcher Martin Brasier, a professor at Oxford University's department of earth sciences. The new study clarifies the ...
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