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Browse 23,125 authentic north america continent stock photos, high-res images, and pictures, or explore additional earth north america continent or north america continent icon stock images to find the right photo at the right size and resolution for your project.
Satellite Image of the North American Continent: This illustration is a composite satellite view of North America presented as an orthographic projection centered at 40 degrees north latitude and 95 degrees west longitude. It was created in 2002 as part of NASA's "Blue Marble" series.
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- Creating A Continent
- Prehistory
- A Brief Respite
- Mountain Building
- Supercontinent!
- Birth of North America
- Building The West
- San Andreas Starts Up
The landmass called North America is actually pretty young, becoming something close to its current incarnation less than 200 million years ago. Before then, the continent was called Laurentia on its journey back and forth across the equator, as it joined and was separated from supercontinents. Over billions of years, whether Laurentia or North Ame...
The central core of present-day North America is its craton, the oldest, thickest part of the continent. While parts of the craton peek out in Greenland and Canada, in the U.S., thick layers of sedimentary rocks keep most of these ancient assemblages under wraps in the center of the continent. The rocks here are more than two billion years old in p...
By 542 million years ago, when complex life forms suddenly appear in the fossil record all across the planet, Laurentia was surrounded by ocean and passive margins on all sides. Like today's East Coast, a passive margin has no active collision or boundary between two of Earth's tectonic plates.
The continent's brief Cambrian respite ended in the Ordovician, when an island chain slammed into the East Coast, raising mountains from Greenland to Mississippi . At the time, the Appalachians were as tall and stunning as the Himalayas are today. A similar collision in the Southwest about 370 million years ago twisted rocks throughout what is now ...
The supercontinent Pangaeaincluded almost every giant landmass on Earth. As these pieces of continent crashed together 300 million years ago, mountains continued to rise along what is now the East Coast.
The Atlantic Ocean opened 200 million years ago, pushing North America westward. As the continent rifted away from the supercontinent Pangaea, it finally earned the name North America.
As the East Coast settled down into a passive margin, with no active tectonics, things were heating up in the West. The widening Atlantic Ocean pushed the continent over the Panthalassa Ocean, precursor to today's Pacific. Geoscientists debate the timing and position of subduction zones along western North America. Did it look like today's Andes or...
When North America gobbled up the boundary between the Farallon and Pacific oceanic plates, its western margin shifted from a subduction zone to a transform boundary. This marks the beginning of the San Andreas Fault, which moves side-by-side. With the sudden shutdown of the giant conveyor belt grinding against its margin, the continent relaxed, an...
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Oct 19, 2023 · 6 - 12+. Subjects. Earth Science, Geology, Meteorology, Geography, Physical Geography. Photograph. North America is one of three continents (along with South America and Oceania) that were new to 15th-century European explorers, but home to the Indigenous people living there. Map by the National Geographic Society. Photograph. Article. Vocabulary.
Search from North America stock photos, pictures and royalty-free images from iStock. Find high-quality stock photos that you won't find anywhere else.
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