Search results
Results from the WOW.Com Content Network
The Taku Glacier. The tidewater glacier cycle is the typically centuries-long behavior of tidewater glaciers that consists of recurring periods of advance alternating with rapid retreat and punctuated by periods of stability. During portions of its cycle, a tidewater glacier is relatively insensitive to climate change.
Critical to an assessment of the validity of the theory, therefore, is an understanding of the reliability and significance of the evidence that led to the belief that ice ever reached the tropics. This evidence must prove three things: that a bed contains sedimentary structures that could have been created only by glacial activity;
The goal of glacial morphology is to gain a better understanding of glaciated landscapes and the way they are shaped. [2] Types of glaciers can range from massive ice sheets, such as the Greenland ice sheet, to small cirque glaciers found perched on mountain tops. [3] Glaciers can be grouped into two main categories:
The Earth is currently in such an interglacial period of the Quaternary glaciation, with the Last Glacial Period of the Quaternary having ended approximately 11,700 years ago. The current interglacial is known as the Holocene epoch. [1] Based on climate proxies, paleoclimatologists study the different climate states originating from glaciation.
5-million-year history, representing the Lisiecki and Raymo (2005) LR04 Benthic Stack Sections of sedimentary cores from off Greenland. Marine isotope stages (MIS), marine oxygen-isotope stages, or oxygen isotope stages (OIS), are alternating warm and cool periods in the Earth's paleoclimate, deduced from oxygen isotope data derived from deep sea core samples.
Taku Glacier at the glacial snout. Taku Glacier (Lingít: T'aaḵú Ḵwáan Sít'i) is a tidewater glacier located in Taku Inlet in the U.S. state of Alaska, just southeast of the city of Juneau. Recognized as the deepest and thickest alpine temperate glacier known in the world, the Taku Glacier is measured at 4,845 feet (1,477 m) thick. [2]
Poison Profits. A HuffPost / WNYC investigation into lead contamination in New York City
In case of the termination of the last glacial cycle, the retreat of continental ice sheets in the Northern hemisphere began about 20,000 calendar years ago. By about 7,000 calendar years ago, a small ice cap on Baffin Island was all that was left of the great Laurentide Ice Sheet that had once covered northern North America. In Antarctica, the ...