the quaternary system
32Geographic information system — GIS redirects here. For other uses, see GIS (disambiguation). A geographic information system, geographical information science, or geospatial information studies is a system designed to capture, store, manipulate, analyze, manage, and present… …
33Tigris-Euphrates river system — ▪ river system, Asia Introduction great river system of Southwest Asia, comprising the Tigris and Euphrates rivers, which have their sources within 50 miles (80 km) of each other in eastern Turkey and travel southeast through northern Syria and… …
34Continental Divide of the Americas — For continental divides in general, see Continental divide. A map of the principal hydrological divides of North America. The Continental Divide is shown in red. There are three closed drainage areas along the divide, which appear as loops. From… …
35Drugs controlled by the UK Misuse of Drugs Act — Drugs controlled by the United Kingdom (UK) Misuse of Drugs Act 1971 are listed in this article. These drugs are known in the UK as controlled drugs, because this is the term by which the act itself refers to them. In more general terms, however …
36Climate change in the Arctic — Very substantial decrease in Arctic Sea ice in 2007 from 2005 and also from 1979–2000 average …
37Whaling in the Netherlands — was a centuries long tradition.The history of Dutch whaling begins with 17th century exploration of Arctic fishing grounds; and the profitability of whaling in the 18th century drove further growth. Increased competition and political upheavals… …
38Major explorations after the Age of Discovery — Major explorations continued after the Age of Discovery. By the early seventeenth century, vessels were sufficiently well built and their navigators competent enough to travel to virtually anywhere on the planet by sea. In the 17th century Dutch… …
39Piacenzian — System Series Stage Age (Ma) Quaternary Pleistocene Gelasian younger Neogene Pliocene …
40Pleistocene Series — ▪ geology worldwide division of rocks deposited during the Pleistocene Epoch (1,600,000 to 10,000 years ago). It overlies rocks from the Pliocene Epoch (5.3 to 1.6 million years ago) and is itself overlain by rocks of the Holocene Series;… …
