Quantcast

Latest Historical geology Stories

Climate Change Bad News For US Military
2012-11-11 09:43:38

Food shortages, natural disasters, energy supply issues and the spread of epidemics are some of the possible climate-related perils the U.S. military needs to prepare to deal with.

What Triggered Earth's Last Big Freeze
2012-11-06 09:53:08

Climate scientists have long debated whether floodwaters from melting of the Laurentide Ice Sheet flowed northwest into the Arctic first, or east via the Gulf of St. Lawrence to weaken ocean thermohaline circulation and have a frigid effect on global climate.

Global Warming 250 Million Years Ago Triggered Slow Species Recovery
2012-11-05 12:49:52

After a major extinction event occurred 250 million years ago, many species that survived had a long, slow recovery, which was exacerbated by the effects of global warming.

Ancient Climate Change Made Hippos Smaller
2012-10-26 11:14:29

1.8 million years ago, hippos were a prominent part of European wildlife along with other mega-fauna such as woolly mammoths and giant cave bears.

Oxygen's Rise And Fall In The Early Atmosphere And Ocean
2012-10-23 20:44:52

UC Riverside-led research team finds evidence for a dramatic rise in early oxygen about 2.3 billion years ago followed, more surprisingly, by an equally impressive fall

Permian Extinction Was Beginning Of 5-Million-Year Deadly Heat Wave
2012-10-19 09:27:25

Life about 250 million years ago was hard to come by. In fact, it was nearly non-existent. Scientists, studying why this period, known as the end-Permian event, lasted so long and have found a key ingredient: heat.

Polar Ice Sheet Melt Influenced By Underwater Landscape
2012-10-17 12:25:09

In a study on polar ice sheet melt around Antarctica, a group of British researchers has found that the shape of water channels beneath the ice can have a strong effect on ice behavior, temporarily hiding indications of its retreat.

Atlantic Heat Pump Was Once Faster
2012-10-16 13:39:01

A new study from an international team of scientists suggests that the circulation of the Atlantic Ocean – known as the Atlantic heat pump – was faster during the last Ice Age than today.

Clam Shells Record Climate Events Over Past Thousand Years
2012-10-02 15:05:18

Modern climatologists have access to a wide array of technological tools, but an international team looking to study climate events from the past thousand years has decided to utilize something a little more old school.


Latest Historical geology Reference Libraries

Hula Painted Frog, Discoglossus nigriventer
2014-08-18 15:55:22

The Hula painted frog was considered extinct by the IUCN since 1996. Very little is known about the species because very few specimens have been found. In 1940 two adults and two tadpoles were collected but the smaller one was eaten by the larger one, and the tadpoles were lost. A single Hula painted frog was found in 1955 which was the last record of this specimen. The extinction of this species is said to be the result of the draining of lake Hula and its marshes in the 1950’s. Only...

Paleontology
2014-01-12 00:00:00

Paleontology or Palaeontology is the scientific study of prehistoric life, including the study of fossils to determine the organisms evolution and interactions with each other and their environments. Paleontological observations have been documented as far back as 5th century BC. The science became established in the 18th century as a result of Georges Cuvier’s work on comparative anatomy, and it developed quickly within the 19th century. The term itself comes from Greek palaios, meaning...

Rainforests
2013-04-19 19:33:20

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
2013-04-01 11:05:27

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...

Geologic Clock With Events And Periods
2012-11-18 19:10:56

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...

More Articles (10 articles) »
Word of the Day
bretelles
  • In dressmaking, straps running from the belt in front over the shoulders to the belt in the back, with more or less elaboration of trimming and outline. They usually broaden at the shoulder and narrow toward the waist.
The word 'bretelles' comes from a French word meaning 'braces'.