Global Information Lookup Global Information

Unalaska Formation information


Unalaska Formation
Stratigraphic range: Miocene Era,
Neogene Period
Outcrops near Dutch Harbor, Unalaska
TypeGeologic formation
OverliesAleutian Ridge
Thickness900–10,000 metres (3,000–32,800 ft)
Location
RegionAleutian Islands,
Alaska
CountryUnited States
Type section
Named forUnalaska Island

The Unalaska Formation is a Miocene Era geologic formation on Amaknak Island and Unalaska Island, in the Aleutian Islands archipelago of southwestern Alaska.[1]

It consists mainly of volcanic breccia, flows, tuff, and intercalated sedimentary rocks.[1] It is exposed over about 70 percent of Unalaska Island. The Dutch Harbor Member is a 126 metres (413 ft) thick Early Miocene sequence of the formation.[1]

It preserves fossils dating back to the Miocene era of the Neogene period.[2]

  1. ^ a b c USGS: Stratigraphy and depositional environment of the Dutch Harbor Member of the Unalaska Formation, Unalaska Island, Alaska
  2. ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.

and 22 Related for: Unalaska Formation information

Request time (Page generated in 0.7775 seconds.)

Unalaska Formation

Last Update:

The Unalaska Formation is a Miocene Era geologic formation on Amaknak Island and Unalaska Island, in the Aleutian Islands archipelago of southwestern...

Word Count : 122

Aleutian Islands

Last Update:

Makushin Volcano (5,691 feet (1,735 m)) on Unalaska Island, is not quite visible from within the town of Unalaska, though the steam rising from its cone is...

Word Count : 4438

List of fossiliferous stratigraphic units in Alaska

Last Update:

Tyonek Formation Neogene Ulungarat Formation Devonian Unalaska Formation Neogene, Paleogene Ungalikthluk Belt Formation Cretaceous Upper Naknek Formation Jurassic...

Word Count : 53

Unalaska Bay

Last Update:

Unalaska Bay is a waterway of Unalaska Island in the U.S. state of Alaska. It is situated below the eastern slopes of Makushin Volcano. Composed of seven...

Word Count : 1381

Umnak

Last Update:

Mount Okmok and the only field of geysers in Alaska. It is separated from Unalaska Island by Umnak Pass. In 2000, Umnak was permanently inhabited by only...

Word Count : 2719

Aleutian subduction zone

Last Update:

associated with these processes are located near Kodiak Island, Shumagin Gap, Unalaska, and the Andreanof Islands, down-dip of these great megathrust events,...

Word Count : 1406

Heavy fuel oil

Last Update:

gallons in Langesund) 2004 Selendang Ayu, Malaysia (336,000 gallons in Unalaska Island - near Arctic) 2003 Fu Shan Hai, China (1,680 tons in the Baltic...

Word Count : 2320

Aleut language

Last Update:

language family. The Aleut language consists of three dialects, including Unalaska (Eastern Aleut), Atka/Atkan (Atka Aleut), and Attu/Attuan (Western Aleut;...

Word Count : 5905

Cornwallius

Last Update:

discovered from Baja California Peninsula, Oregon and Washington coasts, and Unalaska Island. Cornwallius in the Paleobiology Database. Retrieved 16 June 2013...

Word Count : 273

Bill Kazmaier

Last Update:

(link) "1986". thehistoryofwwe.com. "video: Bill Kazmaier Testimony". Unalaska Christian Fellowship. vimeo. Retrieved 2012-10-06. "American Strength Legends:...

Word Count : 3389

Evstratii Delarov

Last Update:

Solov'ev. Delarov participated in Solov'ev's 1764 attacks on the Umnak-Unalaska Aleut alliance, which were carried out in revenge for the 1762 Fox Islands...

Word Count : 720

List of large Holocene volcanic eruptions

Last Update:

1.2 6060 BCE ±50 Haroharo (Te Horoa & other domes) 5 Makushin Volcano Unalaska, Aleutian Arc 7.5 6100 BCE ±50 6 Karkar Island Bismarck Volcanic Arc 20...

Word Count : 2034

List of boroughs and census areas in Alaska

Last Update:

2000) Etymology Density Population Area Map Aleutians West Census Area 016 Unalaska Location in the western Aleutian Islands. 1.17 5,160 4,393 sq mi (11,378 km2)...

Word Count : 1152

John Muir

Last Update:

Muir's paper on the subject. Muir made four trips to Alaska, as far as Unalaska and Barrow. Muir, Mr. Young (Fort Wrangell missionary) and a group of Native...

Word Count : 11524

The Plot in You

Last Update:

MASSiVE "There's Always Money in the Banana Stand" (featuring Landon Tewers) Unalaska "Everything Ends" (featuring Landon Tewers) Silent Screams 2016 "Wasted...

Word Count : 7108

Bombing of Gorla

Last Update:

attack wave contained aircraft flying in both a "high" and "low" box formation. Italian propaganda tying allied bombing raids to the deaths of children...

Word Count : 1754

Strategic bombing during World War II

Last Update:

Despite the use of combat boxes and the assembly ships to form them, formations of unescorted bombers were no match for German fighters, which inflicted...

Word Count : 22416

Schweinfurt

Last Update:

Singapore Axis Singapore Australia Broome Darwin United States Pearl Harbor Unalaska Other cities Bangkok (Thailand) Colombo (Sri Lanka) Kuala Lumpur (Malaysia)...

Word Count : 5681

Alaska

Last Update:

Japan. About half of the Aleuts died during the period of internment. Unalaska/Dutch Harbor and Adak became significant bases for the United States Army...

Word Count : 17183

Bombing of Hamburg in World War II

Last Update:

bombers that had to leave the formation were finished off by fighters. Over the North Sea on the way back to bases, the formation was attacked by eight night-fighters...

Word Count : 6001

Bogoslof Island

Last Update:

stratovolcano at the south edge of the Bering Sea, 35 miles (56 km) northwest of Unalaska Island of the Aleutian Islands chain. It has a land area of 319.3 acres...

Word Count : 980

Bombing of Dresden

Last Update:

Frederick Taylor writes that the Germans could see that a large enemy bomber formation—or what they called "ein dicker Hund" (lit: a fat dog, a "major thing")—was...

Word Count : 14114

PDF Search Engine © AllGlobal.net