Jul 29, 2019 02:54 AM
Ancient Mars tsunami hints at surprisingly wet world
http://www.astronomy.com/news/2019/07/an...-wet-world
INTRO: Three and a half billion years ago, an asteroid slammed into Mars. The cataclysm wasn’t terribly unusual for this period in the solar system’s history, but the fallout would leave its mark. The asteroid carved out an enormous crater. It also sent a wall of water a thousand feet high hurtling around the young Red Planet, which was much more blue at the time. That wave then slammed into land, creating strange landforms on Mars. Since 2017, Francois Costard, a scientist at the French National Centre for Scientific Research, has been advocating this theory to explain a region called the Thumbprint Terrain, and now he thinks he may have found the crater that was ground zero for the tsunami. He published his findings June 26 in the Journal of Geophysical Research Planets. (MORE)
These 4 ancient apocalypses changed the course of civilization
http://blogs.discovermagazine.com/crux/2...TvVDFB7nm0
EXCERPT: . . . The edge of the Norwegian continental shelf is an underwater cliff that runs for six hundred miles along the Atlantic Basin. And one autumn day around 6225–6170 BCE, this cliff collapsed. An estimated 770 cubic miles, or over 50 Mount Everests, of rock broke off and slid into the deep ocean. The rubble flow reached a speed of 90 mph underwater. Meanwhile, on the surface, the ocean bent into a tsunami of unimaginable force. The waves may have reached initial heights of 260 feet, striking the Norwegian coast with 130 foot breakers, and Scotland with waves 65 feet high. As for the people who lived in the low-lying fens of Doggerland, scientists believe this tsunami would have been catastrophic. A 16 foot wall of water buried settlements and farms beneath the waves. And there they would wait 8,000 years for the nets of fishermen to dredge up their remains...
From their capital on Crete, the Minoans [...] left behind remarkable paintings and pioneered technological advancements like indoor plumbing. They grew and flourished. That is, until one summer day around the year 1,600 BC. The volcano of Thera, on what is now the Greek island of Santorini, erupted with the force of two million Hiroshima bombs. ... Minoan settlements on nearby Crete were swept away. The event devastated the maritime trade that was their lifeblood, and the Minoan empire all but collapsed overnight. ... The eruption sent 24 cubic miles of rock into the atmosphere ... It blocked out the sun and threw the world into a period of bitter cold...
Between the 6th and 2nd centuries BC, the Egyptian city of Thonis (known to the Greeks as Heraklion) was one of the busiest ports of the ancient world. [...] Its towering buildings must have looked like they would last forever. But ... the heavy buildings of Thonis were built on soft coastal ground made of clay. Loose, sandy soil of this kind, when saturated with water and struck by earthquake tremors, can undergo a sudden change that makes it behave like liquid. ...As earthquakes rocked the Mediterranean in the final centuries of the first millennium BC Thonis began to sink into the sea. ... By the 8th century AD, Thonis was completely swallowed...
The Eastern Mediterranean at the end of the second millennium BC was thriving. [...] But by 1,100 BC, virtually every society in this part of the world would collapse ... And the cause of all this destruction may have been ... on the snowy slopes of Iceland. Hekla is one of the world’s most active volcanos. ... And its most cataclysmic eruption in human history ... kicked off a period of cooling that would last for years. The rapid climate change that descended over northern Europe seems to have ... driven ... several groups known as “The Sea Peoples” to begin raiding in the south, causing destruction and sacking cities. Under famine, rebellions and outside attacks, the interdependent societies of the Bronze Age collapsed like dominos... (MORE - details)
Perfectly Preserved Ancient Shipwreck Found in the Baltic Sea with Guns Ready to Fire (video)
https://www.livescience.com/66011-ancien...c-sea.html
EXCERPT: An incredibly well-preserved ancient shipwreck has been uncovered in the Baltic Sea. Though it likely dates back to 500 to 600 years ago, "it’s almost like it sank yesterday," Rodrigo Pacheco-Ruiz, a maritime archeologist with the survey specialists MMT, said in a statement. The ship was first discovered using sonar [...] But Pacheco-Ruiz and his team ... recently led an archeological survey of the wreck using underwater robots. (MORE - details)
http://www.astronomy.com/news/2019/07/an...-wet-world
INTRO: Three and a half billion years ago, an asteroid slammed into Mars. The cataclysm wasn’t terribly unusual for this period in the solar system’s history, but the fallout would leave its mark. The asteroid carved out an enormous crater. It also sent a wall of water a thousand feet high hurtling around the young Red Planet, which was much more blue at the time. That wave then slammed into land, creating strange landforms on Mars. Since 2017, Francois Costard, a scientist at the French National Centre for Scientific Research, has been advocating this theory to explain a region called the Thumbprint Terrain, and now he thinks he may have found the crater that was ground zero for the tsunami. He published his findings June 26 in the Journal of Geophysical Research Planets. (MORE)
These 4 ancient apocalypses changed the course of civilization
http://blogs.discovermagazine.com/crux/2...TvVDFB7nm0
EXCERPT: . . . The edge of the Norwegian continental shelf is an underwater cliff that runs for six hundred miles along the Atlantic Basin. And one autumn day around 6225–6170 BCE, this cliff collapsed. An estimated 770 cubic miles, or over 50 Mount Everests, of rock broke off and slid into the deep ocean. The rubble flow reached a speed of 90 mph underwater. Meanwhile, on the surface, the ocean bent into a tsunami of unimaginable force. The waves may have reached initial heights of 260 feet, striking the Norwegian coast with 130 foot breakers, and Scotland with waves 65 feet high. As for the people who lived in the low-lying fens of Doggerland, scientists believe this tsunami would have been catastrophic. A 16 foot wall of water buried settlements and farms beneath the waves. And there they would wait 8,000 years for the nets of fishermen to dredge up their remains...
From their capital on Crete, the Minoans [...] left behind remarkable paintings and pioneered technological advancements like indoor plumbing. They grew and flourished. That is, until one summer day around the year 1,600 BC. The volcano of Thera, on what is now the Greek island of Santorini, erupted with the force of two million Hiroshima bombs. ... Minoan settlements on nearby Crete were swept away. The event devastated the maritime trade that was their lifeblood, and the Minoan empire all but collapsed overnight. ... The eruption sent 24 cubic miles of rock into the atmosphere ... It blocked out the sun and threw the world into a period of bitter cold...
Between the 6th and 2nd centuries BC, the Egyptian city of Thonis (known to the Greeks as Heraklion) was one of the busiest ports of the ancient world. [...] Its towering buildings must have looked like they would last forever. But ... the heavy buildings of Thonis were built on soft coastal ground made of clay. Loose, sandy soil of this kind, when saturated with water and struck by earthquake tremors, can undergo a sudden change that makes it behave like liquid. ...As earthquakes rocked the Mediterranean in the final centuries of the first millennium BC Thonis began to sink into the sea. ... By the 8th century AD, Thonis was completely swallowed...
The Eastern Mediterranean at the end of the second millennium BC was thriving. [...] But by 1,100 BC, virtually every society in this part of the world would collapse ... And the cause of all this destruction may have been ... on the snowy slopes of Iceland. Hekla is one of the world’s most active volcanos. ... And its most cataclysmic eruption in human history ... kicked off a period of cooling that would last for years. The rapid climate change that descended over northern Europe seems to have ... driven ... several groups known as “The Sea Peoples” to begin raiding in the south, causing destruction and sacking cities. Under famine, rebellions and outside attacks, the interdependent societies of the Bronze Age collapsed like dominos... (MORE - details)
Perfectly Preserved Ancient Shipwreck Found in the Baltic Sea with Guns Ready to Fire (video)
https://www.livescience.com/66011-ancien...c-sea.html
EXCERPT: An incredibly well-preserved ancient shipwreck has been uncovered in the Baltic Sea. Though it likely dates back to 500 to 600 years ago, "it’s almost like it sank yesterday," Rodrigo Pacheco-Ruiz, a maritime archeologist with the survey specialists MMT, said in a statement. The ship was first discovered using sonar [...] But Pacheco-Ruiz and his team ... recently led an archeological survey of the wreck using underwater robots. (MORE - details)