Latest Historical geology Stories
U.S. scientists are challenging the prevailing views of the effects of the so-called Snowball Earth glaciations on life on Earth. Researchers from the University of California-Santa Barbara analyzed microfossils found in rocks at the bottom of the Grand Canyon to challenge current theories concerning the effects of the glaciers occurring approximately 635 million to 726 million years ago. Those glaciations are thought to have been responsible for the widespread deaths of early life on...
An international team of researchers uncovered a treasure trove of dinosaur fossils in China that may help paleontologists better understand the evolution of Tyrannosaurus rex, BBC News reported.The fossil finds come from a novel tyrannosaur dubbed 'Xiongguanlong baimoensis,' unearthed near the city of Jiayuguan.Experts believe the bone fossils date from the middle of the Cretaceous period, and could be the missing link tying the familiar big T rex to its much smaller ancestors.The bones show...
Geothermal company relocating to Los Angeles area LOS ANGELES, April 9 /PRNewswire/ -- Craton Equity Partners (http://cratonep.com/) has commenced its second round of funding for EnLink Geoenergy Services (http://www.enlinkgeoenergy.com/). This round, when completed later in the year, will be approximately $10 million; it follows Craton's original investment of approximately $10 million in March 2008. Medley Partners also participated in the second round. The announcement comes as...
U.S. geologists say they've determined that as rocks become hotter in the Earth's crust, they become better insulators but poorer conductors. The University of Missouri scientists said their findings from a study of how well rocks conduct heat at different temperatures provide insights into how magmas are formed and will possibly lead to better models of continental collision and the formation of mountain belts. These results shed important light on a geologic question: how large bodies of...
By Meigs, Andrew Tectonic Geomorphology of Mountains A New Approach to Paleoseismology. By WILLIAM BULL Oxford: Blackwell, 2007, 316 pp. Pounds 39.99 ISBN 978 1 4051 5479 9 This new book, by the author of the classic textbook Ceomorphic Response to Climate Change, provides Professor William Bull's perspective on active tectonics, surface processes, paleoseismology and active topography. Organised around six chapters ('Scrunch and stretch bedrock uplift'; 'Concepts for studies of rising...
By Shen, Shu-Zhong Zhang, Yi-Chun ABSTRACT- The uppermost 5-15 m of the Douling Formation in the southern Hunan area. South China, yields a diverse fauna comprised of ammonoids, bivalves, and brachiopods. The brachiopods reported in this paper consist of 51 species in 34 genera and are dominated by the Lopingian (Late Permian) species associated with a few species persisting from the underlying Maokouan (Late Guadalupian). This fauna is of earliest Wuchiapingian in age as precisely...
Northern Superior Resources Inc. (TSX VENTURE: SUP) ("Northern Superior" or the "Company") is pleased to announce the commencement of a new drill program on its 50%-owned Ti-pa-haa-kaa-ning Gold property ("Ti-pa-haa-kaa-ning" or the "Property") in Northwestern Ontario. Northern Superior is the project operator. The new drill program follows detailed bedrock mapping and sampling in the eastern part of the 33,248 hectare Ti-pa-haa-kaa-ning property over the course of the summer where several...
TORONTO, ONTARIO--(Marketwire - Sept. 18, 2008) - Northern Superior Resources Inc. (TSX VENTURE:SUP) ("Northern Superior" or the "Company") is pleased to announce the commencement of a new drill program on its 50%-owned Ti-pa-haa-kaa-ning Gold property ("Ti- pa-haa-kaa-ning" or the "Property") in Northwestern Ontario. Northern Superior is the project operator. The new drill program follows detailed bedrock mapping and sampling in the eastern part of...
Matamec Explorations Inc. (TSX VENTURE: MAT)("Matamec") is pleased to announce additional assay results from four drill holes in Target A on the Matheson JV Gold Property (Figure 1). Hole MM08-10 intersected in the North Mafic Volcanics 76.0 g/t gold over 0.35 metre in a moderate Grey Zone containing several notations of visible gold (Figure 2, Image 01). Hole MM08-06 intersected, in the North Mafic Volcanics, 9.68 g/t gold over 1.0 metre in a moderate Grey Zone and 47.5 g/t gold over 1.0...
Simberi Mining Corporation ("Simberi"), (TSX VENTURE: SAU) announces that subject to regulatory approval, it has granted 200,000 incentive stock options to an officer of Simberi. The stock options, which vest quarterly over an 18 month period, are exercisable at a price of $0.10 for a period of 5 years from the date of grant. About Simberi: Simberi Mining Corporation is a Canada-based international mineral development company that participates in early to mid stage properties with high...
Latest Historical geology Reference Libraries
Rainforests are forests that are characterized by high levels of rainfall, with definitions based on a minimum usual annual rainfall of about 68 to 78 inches. The monsoon trough, or otherwise known as the intertropical convergence zone, holds an important role in producing the climatic conditions that are essential for the Earth’s tropical rainforests. About 40 to 75 percent of all biotic species are native to the rainforests. It’s been estimated that there might be many millions of...
Climate change is a substantial and lasting change in the statistical distribution of weather patterns over periods of time ranging from decades to millions of years. It might be a change in the average weather conditions, or in the distribution of weather around the average conditions. Climate change is a result of factors that include oceanic processes, biotic processes, variations in solar radiation received buy Earth, volcanic eruptions, and plate tectonics, and human induced alterations...
The Neoproterozoic is the third of three subdivisions of the Proterozoic Eon (occurring from 1 billion years ago to 542 million years ago). This terminal era of the Proterozoic is itself divided into three sub-periods called the Tonian, Cryogenian, and Ediacaran Periods. The most severe glaciation known in the geologic record occurred during the Cryogenian Period, when ice sheets reached the equator and formed a possible “Snowball Earth.” And the earliest fossils of multi-cellular life...
The Paleoproterozoic is the first of three subdivisions of the Proterozoic Eon (occurring from 2.5 billion to 1.6 billion years ago (Ga). This period is marked by the first stabilization of the continents, and also when cyanobacteria--a type of bacteria that uses biochemical processes of photosynthesis to produce oxygen--evolved. Experts have found paleontological evidence that during at least part of the Paleoproterozoic era, about 1.8 Ga, the earth year was about 450 days long, with days...
The Archean (formerly Archaeozoic) is a geologic eon between the Hadean and Proterozoic eons. The Archean Eon begins at roughly 3.8 billion years ago (Ga) and ends at about 2.5 Ga. But unlike all other geological ages, which are based on stratigraphy, The Archean eon is defined chronometrically. The lower boundary of 3.8 Ga has also not been officially recognized by the International Commission on Stratigraphy. The name Archean is derived from the ancient Greek (Arkhe), meaning...
