Snowball Earth: Drone mapping and isotopic dating suggest Marinoan glaciation spanned 4 million years

Most precise estimate of second “Snowball Earth” suggests it lasted 4 million years

Scientists are coming closer to understanding the impact of the two periods known as “Snowball Earth,” on the evolution of life, and in particular, complex life. An artist’s illustration of a ‘snowball Earth’. Credit: NASA Earth was covered in ice twice during a period called the Cryogenian, 720 to 635 million years ago (mya). The first, called the Sturtian glaciation, lasted 56 million years. The duration of the second, however, called the Mari…

Snowball Earth: Drone mapping and isotopic dating suggest Marinoan glaciation spanned 4 million years

Scientists at the University of California, Berkeley, and Boise State University have found evidence suggesting that the Marinoan glaciation began approximately 639 million years ago and lasted for approximately 4 million years. In their study published in the Proceedings of the National Academy of Sciences, the group used drone and field imagery along with isotopic dating of glacial deposits to learn more about global glaciation events during t…

Scientists from the University of California, Berkeley and the State University of Boise found evidence suggesting that marinan glaciation began about 639 million years ago and lasted about 4 million years. In their study published in the Proceedings of the National Academy of Sciences the group used [...]