How was the Bentley subglacial trench formed?

How was the Bentley subglacial trench formed?

A period of diffuse extension created the rift valley in the late Cretaceous, roughly 100 million years ago, Lloyd said, and more focused extension then created deep basins like the Bentley Subglacial Basin and the Terror Rift in the Ross Sea.

Where is the Bentley Subglacial Trench?

West Antarctica
West Antarctica is the site of several interesting geological structures including Mount Sidley—the tallest dormant volcano in Antarctica—and the Bentley Subglacial Trench—a narrow, deep feature located within the West Antarctic Rift System.

What is the deepest Trench in Antarctica?

Denman trough
The Deepest Point of All Earth’s Continents Has Been Discovered in Antarctica. The deepest point on any of Earth’s continents has been discovered by scientists. The trench, which stretches two miles below sea level, is found beneath the Antarctic ice in what is known as the Denman trough.

Is there life in Lake Vostok?

The embayment contained the most biological activity with the largest number of species Identified. After two years of computer analysis, the final results reveal that Vostok Lake contains a diverse set of microbes, as well as some multicellular organisms.

What is the lowest point of Antarctica?

The lowest point in Antarctica is within the Denman Glacier, which reaches 3.5 kilometers (11,500 feet) below sea level. This is also the lowest place on Earth not covered by ocean (although it is covered by ice).

Does Antarctica uses Greenwich Mean Time?

Antarctica Standard Time is Greenwich Mean Time (GMT).

What is the deepest land point in the world?

The deepest point on continental Earth has been identified in East Antarctica, under Denman Glacier.

• The deepest point on continental Earth has been identified in East Antarctica, under Denman Glacier.
• This ice-filled canyon reaches 3.5km (11,500ft) below sea level.

What has been found in Lake Vostok?

In addition to fungi and two species of archaea (single-celled organisms that tend to live in extreme environments), the researchers identified thousands of bacteria, including some that are commonly found in the digestive systems of fish, crustaceans and annelid worms, according to the press release.

What really happened at Lake Vostok?

Russian scientists breached Lake Vostok in February 2012, after years of drilling. When the drill hit the lake, it automatically withdrew in response to the pressure change. Lake water gushed into the borehole, pushing the kerosene up the hole before freezing.

Does Antarctica have a hole?

A few years ago, a giant hole opened up in the Antarctic sea ice, capturing attention around the world. Not since the 1970s had such a chasm appeared in the mid-ocean ice of the Weddell Sea. Scientists showed in previous research that ocean processes and cyclones contributed to the hole, called a polynya.