Insular Island
What were the Insular Islands?
The Insular Islands were a large group of active volcanic islands that are believed to have existed in the Cretaceous period (145-66 million years ago). They were located somewhere in what is now the modern-day Pacific Ocean. It is thought that they formed at least 210 million years before they met their ultimate fate about 115 million years ago, which will be discussed later.
This massive island chain was located between two prehistoric oceans, with the Bridge River Ocean located to its east. Meanwhile, the Panthalassa Ocean was located to its west. This ocean was a super-ocean that covered close to 70 percent of the planet. What is now known as the Pacific Ocean was formed out of its center starting all the way back in the Mesozoic Era (252-66 million years ago).
The Insular Islands meet …show more content…
Once the Insular Plate stopped subducting under North America, the collision stopped. Unfortunately for the Bridge River Ocean, it got caught between the Insular Islands and the continent and ended up closing when the violent collision took place.
What did the Insular Islands become?
What were the Insular Islands is now known as the Insular Belt, which is a major geologic feature along the west coast of Canada that stretches into the American state of Alaska. The sedimentary and volcanic rocks that once made up the ancient island chain helped to create the what is now the Insular belt. These rocks are also completely different to any others found on the continent of North America.
The Insular belt is made up of four major island groups, three of which are Canadian (Vancouver Island, Gulf Island and Haida Gwaii) and one of which is America (Alexander Archipelago). Besides this, the area has many smaller islands and is most noted for its natural extremes and rugged land with basically no flatness to
The Insular Islands were a large group of active volcanic islands that are believed to have existed in the Cretaceous period (145-66 million years ago). They were located somewhere in what is now the modern-day Pacific Ocean. It is thought that they formed at least 210 million years before they met their ultimate fate about 115 million years ago, which will be discussed later.
This massive island chain was located between two prehistoric oceans, with the Bridge River Ocean located to its east. Meanwhile, the Panthalassa Ocean was located to its west. This ocean was a super-ocean that covered close to 70 percent of the planet. What is now known as the Pacific Ocean was formed out of its center starting all the way back in the Mesozoic Era (252-66 million years ago).
The Insular Islands meet …show more content…
Once the Insular Plate stopped subducting under North America, the collision stopped. Unfortunately for the Bridge River Ocean, it got caught between the Insular Islands and the continent and ended up closing when the violent collision took place.
What did the Insular Islands become?
What were the Insular Islands is now known as the Insular Belt, which is a major geologic feature along the west coast of Canada that stretches into the American state of Alaska. The sedimentary and volcanic rocks that once made up the ancient island chain helped to create the what is now the Insular belt. These rocks are also completely different to any others found on the continent of North America.
The Insular belt is made up of four major island groups, three of which are Canadian (Vancouver Island, Gulf Island and Haida Gwaii) and one of which is America (Alexander Archipelago). Besides this, the area has many smaller islands and is most noted for its natural extremes and rugged land with basically no flatness to