Showing posts with label Idaho. Show all posts
Showing posts with label Idaho. Show all posts

Thursday, April 29, 2021

10,000,000 BP to 1,000,000 BP

10,000,000 BP to 1,000,000 BP 




7,246,000 Mya, Neogene, Miocene, Messinian: Messinian Event with hypersaline lakes in empty Mediterranean Basin. Moderate icehouse(?)climate, punctuated by ice ages and reestablishment of East Antarctic Ice Sheet.                                                

 

6,400,000 BP: Heise volcanic field. Yellowstone hotspot. Walcott Tuff. Idaho, US. Ejecta volume was about 750 km3.

  

6 Mya: Giants similar to humans began to flourish on Earth about this time and were still in evidence to about 200,000 BP. They seem to have survived some cold times. I imagine that the great Ice Age got their attention.


 

2.6 Mya to 12,000 BP: This time marks the duration of the Pleistocene Epoch

~ The Pleistocene is followed by the Holocene Epoch. As I remember the Holocene is the geological Epoch in which we are living.


2.58 Mya: Phanerozoic Eon, Cenozoic Era, Quaternary Period, Pleistocene Epoch, Gelasian Age: Start of Quaternary glaciations.Rise of the Pleistocene about 2,580,000 years ago or years before the present. 

 

2.48 Mya: Geologically speaking not so astoundingly long ago, there was a colossal volcanic eruption. It occurred at Cerro Galan, in the Andes Central Volcanic Zone in the Catamarca province of Argentina.


1.8 Mya, Pleistocene, Calabrian: Further cooling of the climate. Spread of Homo erectus.


1.76 Mya: Tool making by homo erectus may be traced back to this time.



1,080,000 BP, New Zealand: There occurred a superruption in what is now called the Mangakino Caldera. One might call it the kidnappers eruption.


 

 

 

 

 

 

Tuesday, April 27, 2021

15 Mya to 10 Mya(?)

 15 Mya to 10 Mya


13.82 Mya: Neogene, Miocene, Serravaillan: Warmer climate during Middle Miocene.


12 Mya: About this time there was a massive, explosive volcanic eruption on the border of what is now Argentina and Bolivia. Cerro Panizos of the Altiplano Puna volcanic complex.

11.830 Mya: About this time a massive, explosive volcanic eruption occurred at what is now the Bruneau/Jarbridge, Yellowstone hotspot in Idaho, USA. It was responsible for the Ashfall Fossil Beds 1,600 km to the east.


11.63 Mya: Neogene, Miocene, Tortonian: Gradual separation of human and chimpanzee ancestors. Sahelanthropus tchadensis in Africa. 


11.7 Mya, Greenlandia Age of the Holocene Epoch: Current interglacial begins. Sea level flooding of  Doggerland and Sundaland. Sahara desert forms. Neolithic agriculture was practiced.(?)




1,000,000 BP to 500,000 BP

1,000,000 BP to 500,000 BP 780,000 BP: Erath's magnetic field switched polarities and may well have caught the attention of giants