Sentence examples for shallow seaway from inspiring English sources

During the early Paleozoic Era, the basin was covered by a shallow seaway.

In the Cretaceous, a shallow seaway spread into the interior of North America from the Gulf of Mexico in the south into Utah and later to the Arctic Ocean in the far north.

Shallow seaways covered many continents, and marine and marginal marine sediments were deposited, preserving a diverse set of fossils.

In Middle and early Late Jurassic times, the western regions of North America were covered by shallow seaways that advanced and retreated repeatedly, leaving successive accumulations of marine sandstones, limestones, and shales.

In fact, for most of the time over the past half-billion years, the world's continents have been flooded to some degree by shallow seaways.

Geologists call this shallow sea the Cretaceous Seaway or Western Interior Seaway.

In Siats' day, what is now Utah was marshy and wet, positioned along the coast of the Western Interior Seaway, a shallow sea that once bisected North America.

The Horseshoe Canyon Formation is interpreted as having a significant marine influence, due to an encroaching Western Interior Seaway, the shallow sea that covered the midsection of North America through much of the Cretaceous.

For approximately 27 million years of the Late Cretaceous (∼95 68 Ma), elevated global sea levels produced the Cretaceous Western Interior Seaway, a shallow sea that flooded the central portion of North America, forming eastern and western landmasses known as Appalachia and Laramidia, respectively (Fig. 1) [1].

The Western Interior Seaway was a shallow body of water that split North America in half from the Arctic Ocean to the Gulf of Mexico.

These chalk beds were deposited at the bottom of what was once the Western Interior Seaway, a large shallow sea over what now is the midsection of the North American continent.