Devonian

will introduce the Bakken Formation in reference with the Williston Basin. It will also address sedimentary and structural aspects of the Bakken Formation. Section II outlines the processes that formed the Bakken Formation that occurred during the Devonian/Mississippian age. Section III will summarize organic components and influence within the Bakken Formation. Furthermore Section IV will address the nature of inorganic constinuents that influence the Bakken Formation. Section V will discuss production

Gorge State park had the oldest formations with slate, shale, sandstone and Siltstone all from the Ordovician period. However, once in the woodland area; medium to a coarse grain of Devonian and granite was also found. You Yangs Regional Park had the second oldest formations as it consists of Coarse grained Devonian Granite, sediments of marine sands from the Pliocene period. However, it also consisted of Non-marine sand outwash from the most recent Alluvium period. Alkaline Olivine Basalt from

sea levels in the ocean caused a large portion of Earth’s species to disappear. Another cause would be the changes in climate change, asteroid strikes, or new land plants. Some theories suggest that oxygen depletions in shallow waters caused the Devonian Extinction. Other theories say that algae

Chapter 11 The first Paleozoic orogeny to occur in the Cordilleran mobile belt was the: | c. Antler | | Extensive cratonic black shales were deposited during what two periods? | d. Late Devonian-Early Mississippian | | The main economic deposit of a cyclothem is: | a. coal | | During the Late Kaskaskia (Cratonic Sequence 3), what type of deposition predominated on the craton? | e. carbonates | | Which orogeny was not part of the closing of the Iapetus Ocean

Placoderms existed throughout the Devonian Period (about 416 million to 359 million years ago), but only two species persisted into the succeeding Carboniferous Period. During the Devonian they were a dominant group, occurring in all continents except South America in a variety of marine and freshwater sediments. The earliest placoderms were heavily armoured and

In the course of Earth’s history, there have been five major extinction events: the Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, and Cretaceous-Paleogene extinction events. Now, according to Pulitzer Prize-winning author Elizabeth Kolbert, we are entering another one that is caused by a single species: ours. Human beings have decimated the rainforest, hunted animals like the great auk to extinction, pumped billions of tons of pollution into our atmosphere and oceans

The Ordovician is characterised by sea life, so creatures such as brachiopods, graptolites and trilobite populations were severely diminished. An ice age is said to be responsible for the death (endangerdspeciesinternational.org, 2011). The Late Devonian mass extinction is well-known for having one of the most drastic extinction rates. During this extinction period, which spans over a few million years,

Phanerozoic. In the Pre-cambrian there are 3 eras, the Haydean, Archean, and the Proterozoic. In the Phanerozoic, there are the Paleozoic, Mesozoic, and Cenozoic Eras. In the Paleozoic, there are seven periods, the Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, and Permian. Then for Mesozoic there are three periods, Triassic, Jurassic, Cretaceous. In the

With this happening the Devonian has become known as the age of fishes. “The first backboned "fish" were the Aganthans, which are commonly called jawless fish (Huges, 1996). Agnathans live today as hagfish and lampreys, but they do not resemble ancient Agnathans (Hamlin, 1999).

years ago from a group of freshwater green algae called charophytes (Domozych). These algae emerged on land and thus spawned the first plants, bryophytes. Bryophytes are non-vascular plants who first appeared 354-409 million years ago in the Devonian period, and are only found on land (Evolution). Since they lived on land, they had little support and relied on their cells’ turgor pressure to keep them upright (Evolution). Turgor pressure is the force that is generated from fluid pushing against