Nope. Read through the link.
The Ice Ball-The Melt-The beginning of life---The Here & NOW
- Thread starter jamesdyson
- Start date
I did read through the link. That is how I came to ask.
Where did the water come from--?
A study by NASA and university researchers, published in the June 14, 2013 issue of Science, found however that ocean waters melting the undersides of Antarctic ice shelves are responsible for most of the continent's ice shelf mass loss.[2]
An ice shelf is a thick suspended platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Canada, and the Russian Arctic. The boundary between the floating ice shelf and the anchor ice (resting on bedrock) that feeds it is called the grounding line. The thickness of ice shelves can range from about 100 m (330 ft) to 1,000 m (3,300 ft).
The Snowball Earth hypothesis proposes that during one or more of Earth's icehouse climates, Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650 Mya(million years ago). Proponents of the hypothesis argue that it best explains sedimentary deposits generally regarded as of glacial origin at tropicalpalaeolatitudes and other enigmatic features in the geological record. Opponents of the hypothesis contest the implications of the geological evidence for global glaciation and the geophysical feasibility of an ice- or slush-covered ocean[3][4]
https://en.wikipedia.org/wiki/Snowball_Earth
"Snowball Earth" Confirmed: Ice Covered EquatorEarth's now steamy Equator was covered with ice 716 million years ago, according to a new study.
Strange fossil may be rare insect preserved in gemstone.
The finding appears to add solid evidence to the theory of an ancient "snowball Earth."
https://news.nationalgeographic.com/news/2010/03/100304-snowball-earth-ice-global-warming/
In the beginning, planet Earth was a very inhospitable place with no oxygen and only single-celled bacteria as inhabitants. According to a new study, the oxygen content in the air began to increase about 2.4 billion years ago, at the same time as the global glaciation and when all continents were gathered in a single huge landmass, or supercontinent. How to explain the exact connection between these events, however, is a question that baffles the researchers.
https://www.sciencedaily.com/releases/2017/02/170207104352.htm
A Brief History of Ice Ages and Warming
Global warming started long before the "Industrial Revolution" and the invention of the internal combustion engine. Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age-- a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial ice.
https://www.geocraft.com/WVFossils/ice_ages.html
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The Snowball Earth hypothesis proposes that during one or more of Earth's icehouse climates, Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650 Mya(million years ago). Proponents of the hypothesis argue that it best explains sedimentary deposits generally regarded as of glacial origin at tropicalpalaeolatitudes and other enigmatic features in the geological record. Opponents of the hypothesis contest the implications of the geological evidence for global glaciation and the geophysical feasibility of an ice- or slush-covered ocean[3][4] and emphasize the difficulty of escaping an all-frozen condition. A number of unanswered questions remain, including whether the Earth was a full snowball, or a "slushball" with a thin equatorial band of open (or seasonally open) water.
https://en.wikipedia.org/wiki/Snowball_Earth
"Snowball Earth" Confirmed: Ice Covered Equator
Earth's now steamy Equator was covered with ice 716 million years ago, according to a new study.
SCIENCE & INNOVATION
Strange fossil may be rare insect preserved in gemstone
The finding appears to add solid evidence to the theory of an ancient "snowball Earth."
The discovery hinged on proving that the right rocks had been covered by glaciers in the right place at the right time.
Study leader Francis Macdonald, an Earth scientist at Harvard University, and colleagues worked with volcanic rocks in Canada that were found sandwiched between glacial deposits. Such deposits are recognizable by the presence of debris left behind by melting glaciers and sediments deformed by glacial movement.
There's still plenty of mystery surrounding snowball Earth—aka the Sturtian glaciation—Macdonald said.
For example, an icy Equator alone can't tell scientists the extent of ice cover around the world. The continents may have been in a total deep freeze, or the planet may have simply been subjected to a patchwork of constantly moving glaciers or icebergs—or something in between.
And even the "snowball Earth" name might need rethinking.
Earth probably wasn't "just a white ball, but more of a mud ball," Macdonald said. Regular eruptions of ash-spewing volcanoes likely made the continents "dusty messes."
Since plants had not yet evolved 700 million years ago, the dirty ice could have been the only dark spots on Earth's surface to absorb the sun's rays. As a result, these regions may have been more likely to melt, creating water bodies where primitive life-forms, such as algae and fungi, could thrive.
https://news.nationalgeographic.com/news/2010/03/100304-snowball-earth-ice-global-warming/
In the beginning, planet Earth was a very inhospitable place with no oxygen and only single-celled bacteria as inhabitants. According to a new study, the oxygen content in the air began to increase about 2.4 billion years ago, at the same time as the global glaciation and when all continents were gathered in a single huge landmass, or supercontinent. How to explain the exact connection between these events, however, is a question that baffles the researchers.
https://www.sciencedaily.com/releases/2017/02/170207104352.htm
A Brief History of Ice Ages and Warming
Global warming started long before the "Industrial Revolution" and the invention of the internal combustion engine. Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age-- a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial ice.
Earth's climate and the biosphere have been in constant flux, dominated by ice ages and glaciers for the past several million years. We are currently enjoying a temporary reprieve from the deep freeze.
Approximately every 100,000 years Earth's climate warms up temporarily. These warm periods, called interglacial periods, appear to last approximately 15,000 to 20,000 years before regressing back to a cold ice age climate. At year 18,000 and counting our current interglacial vacation from the Ice Age is much nearer its end than its beginning.
https://www.geocraft.com/WVFossils/ice_ages.html
I believe I have a few double posts in this post
sorry
A study by NASA and university researchers, published in the June 14, 2013 issue of Science, found however that ocean waters melting the undersides of Antarctic ice shelves are responsible for most of the continent's ice shelf mass loss.[2]
An ice shelf is a thick suspended platform of ice that forms where a glacier or ice sheet flows down to a coastline and onto the ocean surface. Ice shelves are only found in Antarctica, Greenland, Canada, and the Russian Arctic. The boundary between the floating ice shelf and the anchor ice (resting on bedrock) that feeds it is called the grounding line. The thickness of ice shelves can range from about 100 m (330 ft) to 1,000 m (3,300 ft).
The Snowball Earth hypothesis proposes that during one or more of Earth's icehouse climates, Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650 Mya(million years ago). Proponents of the hypothesis argue that it best explains sedimentary deposits generally regarded as of glacial origin at tropicalpalaeolatitudes and other enigmatic features in the geological record. Opponents of the hypothesis contest the implications of the geological evidence for global glaciation and the geophysical feasibility of an ice- or slush-covered ocean[3][4]
https://en.wikipedia.org/wiki/Snowball_Earth
"Snowball Earth" Confirmed: Ice Covered EquatorEarth's now steamy Equator was covered with ice 716 million years ago, according to a new study.
Strange fossil may be rare insect preserved in gemstone.
The finding appears to add solid evidence to the theory of an ancient "snowball Earth."
https://news.nationalgeographic.com/news/2010/03/100304-snowball-earth-ice-global-warming/
In the beginning, planet Earth was a very inhospitable place with no oxygen and only single-celled bacteria as inhabitants. According to a new study, the oxygen content in the air began to increase about 2.4 billion years ago, at the same time as the global glaciation and when all continents were gathered in a single huge landmass, or supercontinent. How to explain the exact connection between these events, however, is a question that baffles the researchers.
https://www.sciencedaily.com/releases/2017/02/170207104352.htm
A Brief History of Ice Ages and Warming
Global warming started long before the "Industrial Revolution" and the invention of the internal combustion engine. Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age-- a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial ice.
https://www.geocraft.com/WVFossils/ice_ages.html
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The Snowball Earth hypothesis proposes that during one or more of Earth's icehouse climates, Earth's surface became entirely or nearly entirely frozen at least once, sometime earlier than 650 Mya(million years ago). Proponents of the hypothesis argue that it best explains sedimentary deposits generally regarded as of glacial origin at tropicalpalaeolatitudes and other enigmatic features in the geological record. Opponents of the hypothesis contest the implications of the geological evidence for global glaciation and the geophysical feasibility of an ice- or slush-covered ocean[3][4] and emphasize the difficulty of escaping an all-frozen condition. A number of unanswered questions remain, including whether the Earth was a full snowball, or a "slushball" with a thin equatorial band of open (or seasonally open) water.
https://en.wikipedia.org/wiki/Snowball_Earth
"Snowball Earth" Confirmed: Ice Covered Equator
Earth's now steamy Equator was covered with ice 716 million years ago, according to a new study.
SCIENCE & INNOVATION
Strange fossil may be rare insect preserved in gemstone
The finding appears to add solid evidence to the theory of an ancient "snowball Earth."
The discovery hinged on proving that the right rocks had been covered by glaciers in the right place at the right time.
Study leader Francis Macdonald, an Earth scientist at Harvard University, and colleagues worked with volcanic rocks in Canada that were found sandwiched between glacial deposits. Such deposits are recognizable by the presence of debris left behind by melting glaciers and sediments deformed by glacial movement.
There's still plenty of mystery surrounding snowball Earth—aka the Sturtian glaciation—Macdonald said.
For example, an icy Equator alone can't tell scientists the extent of ice cover around the world. The continents may have been in a total deep freeze, or the planet may have simply been subjected to a patchwork of constantly moving glaciers or icebergs—or something in between.
And even the "snowball Earth" name might need rethinking.
Earth probably wasn't "just a white ball, but more of a mud ball," Macdonald said. Regular eruptions of ash-spewing volcanoes likely made the continents "dusty messes."
Since plants had not yet evolved 700 million years ago, the dirty ice could have been the only dark spots on Earth's surface to absorb the sun's rays. As a result, these regions may have been more likely to melt, creating water bodies where primitive life-forms, such as algae and fungi, could thrive.
https://news.nationalgeographic.com/news/2010/03/100304-snowball-earth-ice-global-warming/
In the beginning, planet Earth was a very inhospitable place with no oxygen and only single-celled bacteria as inhabitants. According to a new study, the oxygen content in the air began to increase about 2.4 billion years ago, at the same time as the global glaciation and when all continents were gathered in a single huge landmass, or supercontinent. How to explain the exact connection between these events, however, is a question that baffles the researchers.
https://www.sciencedaily.com/releases/2017/02/170207104352.htm
A Brief History of Ice Ages and Warming
Global warming started long before the "Industrial Revolution" and the invention of the internal combustion engine. Global warming began 18,000 years ago as the earth started warming its way out of the Pleistocene Ice Age-- a time when much of North America, Europe, and Asia lay buried beneath great sheets of glacial ice.
Earth's climate and the biosphere have been in constant flux, dominated by ice ages and glaciers for the past several million years. We are currently enjoying a temporary reprieve from the deep freeze.
Approximately every 100,000 years Earth's climate warms up temporarily. These warm periods, called interglacial periods, appear to last approximately 15,000 to 20,000 years before regressing back to a cold ice age climate. At year 18,000 and counting our current interglacial vacation from the Ice Age is much nearer its end than its beginning.
https://www.geocraft.com/WVFossils/ice_ages.html
I believe I have a few double posts in this post
sorry
Ya know, restating your argument as if no one has challenged your position is pretty dishonest, if you ask me...