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subduction zone

(Encyclopedia)subduction zone, large-scaled narrow region in the earth's crust where, according to plate tectonics, masses of the spreading oceanic lithosphere bend downward into the earth along the leading edges o...

rift valley

(Encyclopedia)rift valley, elongated depression, trough, or graben in the earth's crust, bounded on both sides by normal faults and occurring on the continents or under the oceans. The central flat block forming th...

Taylor, John, English writer

(Encyclopedia)Taylor, John, 1578?–1653, English writer. He was a boatman on the Thames and hence is often called the Water Poet. A traveler throughout England and the Continent, he recorded his observations in bo...

Poynings, Sir Edward

(Encyclopedia)Poynings, Sir Edward, 1459–1521, English statesman. After taking part in an insurrection (1483) against Richard III, he fled to the Continent, where he joined the followers of Henry Tudor, earl of R...

Vespucci, Amerigo

(Encyclopedia)Vespucci, Amerigo ämārēˈgō vāspo͞otˈchē [key], 1454–1512, Italian navigator in whose honor America was named, b. Florence. He entered the commercial service of the Medici and in 1492 moved ...

Bransfield, Edward

(Encyclopedia)Bransfield, Edward, 1795–1852, English sea captain and antarctic explorer. In 1820, Bransfield sailed from Chile to the South Shetland Islands off the N Antarctic Peninsula. After claiming King Geor...

Persons, Robert

(Encyclopedia)Persons or Parsons, Robert both: pärˈsənz [key], 1546–1610, English Jesuit missionary. He left a fellowship at Balliol College, Oxford, and went to the Continent to be received (1575) into the Ro...

Alice Springs

(Encyclopedia)Alice Springs, town, Northern Territory, Australia. It lies in a pastoral area surrounded by desert near the center of the continent and is a stop on the Adelaide Darwin Railway. The town ...

Malachy, Saint

(Encyclopedia)Malachy, Saint mălˈəkē [key], 1095–1148, Irish churchman, reformer of the church in Ireland. His Irish name was Máel Máedoc ua Morgair. He was assistant to Cellach (Celsus), bishop of Armagh, ...

Horn of Africa

(Encyclopedia)Horn of Africa, peninsula, NE Africa, opposite the S Arabia Peninsula. Also known as the Somali Peninsula, it encompasses Somalia and E Ethiopia and is the easternmost extension of the continent, sepa...