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About The Battalion. (College Station, Tex.) 1893-current | View Entire Issue (June 3, 1981)
'i Page 10 THE BATTALION WEDNESDAY, JUNE 3, 1981 National Find it in Battalion Classified 845-2611 Scientist shows Earth age difference NO MATTER WHAT LIFE STYLE YOU CHOOSE, THERE IS ONLY ONE REAL CHOICE FOR HAIRSTYLING... United Press International WASHINGTON — A Caltech geologist thinks he knows why scientists searching the world have been unable to find rocks older than about 3.8 billion years — even though the Earth is believed to be some 4.6 billion years old. Dr. Don L. Anderson says the evidence indicates the young globe was blanketed by an ocean of molten rock and that as the liquid “froze,” the resulting crystals sank to the depths of this sea of magma — like sand settling in a pond. Thus the earliest crystallized rock on Earth probably is buried hundreds of miles beneath the surface. Anderson, professor of geophysics and director of Cal tech’s seismological laboratory, outlined his theory at a meeting last week of the American Geophysical Union in Baltimore. He said his ideas were based on a decade of research. His theory represents a sharp departure from commonly accepted ideas of Earth’s early history that hold the Earth formed with only modest amounts of melting. The key to Anderson’s hypothesis lies in Earth’s mantle, that semi-solid region between the thin crust of today and the molten core. Anderson believes the upper layers of the mantle solidified at different times from the global ocean of molten material into rock of different composition. The theory is based primarily on the fact that molten rock now coming up in crustal cracks in the middle of ocean floors is chemically quite different froiYi that coming up at oceanic islands and in the interiors of continents. Anderson said the first forming crystals in the magma ocean would have been more dense than the liquid rock — so they would sink. The elements concentrated in the early crust therefore formed the lower layers of the mantle. “As the Earth cooled, further lighter crystals began to separate out of the melt and form the upper mantle,” Anderson said. “These crystals, however, were depleted in those elements that formed the first layer, making the two layers complementary in their chemistry. “Such a scenario explains the absence of an early crust on Earth and the two contrasting magmas found at ocean ridges and ocean islands.” Anderson said the inferred composition of these two layers indicates they resulted from a 20 percent melt of the mantle. That would make the ocean of molten roch 1 , 300 miles thick if the melted material was on thesu4 one time. Me said the surface probably remained®<j from about 4.5 billion to 3.8 billion years ago. Sound wave studies have shown there indeedisar separation in the mantle at depths of about miles. Molten rock from the upper layer of the manllt; leased where continents separate and where ocean^ form such as in the Hawaiian chain of islands. Thesera Anderson said, contain such elements as potassium.; nium, thorium, barium and rubidium — whichfe migrate upwards in a molten state. Molten material from the deeper layer of the n emerges from the mid-ocean ridges and Andersot] these rocks contain elements that would haver down in a magma ocean. When mixed together, Anderson said, thee!eineni(| centrations of the upper and lower layers of the j would approximate the average composition of the E Suppliers must face situation here to survive Japanese computers gain in U.S. sales United Press International NEW YORK — Japanese com puters, unlike their autos, are not yet a major presence in the United States, but they are slowly gaining a firm foothold. Mirek J. Stevenson, chairman of Quantum Science Corp., which specializes in evaluation of the im pact of technology on business. it us pay your service charges for 3 full months! Announcing our new back-to-basics checking account with no service charge for 3 months. tf5. *#V £ % Now you can have a regular checking account at Homestead Savings and we’ll pay your service charges for 3 months. So you'll save $15. If you are 65 or older, you’ll never pay a service charge at Homestead. Our regular checking and interest bearing checking are both free to senior citizens. You can open your checking account at our Bryan or College Station location. And when you open your checking account, consider the convenience of a savings account at Homestead. We pay higher interest on regular savings than any area bank. $15 today. Open your checking mt at your family financial center. mestead Savings Family Financial Center Texas Avenue, College Station 693-1063 Center, 3601 E. 29th St. Bryan 779-3601 •" ^ - told a recent seminar “Japanese companies have strong technolo gical capabilities which will pose a threat in the new rapidly emerg ing computer departmental infor mation processing and telecon ferencing markets of future office systems. “These technological capabili ties are particularly strong in such areas as communications, video compression, speech recognition, non-impact printing, telecon ferencing, facsimilie and personal computers,” Stevenson told the meeting sponsored by the Amer ican Institute for Professional Education. He said the merger of compu ter, communications and office- related technologies will give the Japanese a big advantage, unless properly faced by U.S. suppliers. Analyzing on a company- bycompany basis, he said: —Fujitsu Ltd., focuses its re search efforts on such leading edge technologies as pattern rec ognition, cassette bubble memor ies, Kanji (Japanese character) D. R. CAIN RENTAL PROPERTIES ‘You Have A Choice” BRIARCREST RIDGE APARTMENTS New apartments in a country atmosphere. Exit Briarcrest off the East By-Pass, on Prairie Flower. 2 bedrooms, 1 bath, washer and dryer connections, all electric, water paid, $340.00 unfurnished, $200.00 security deposit per roommate or family. 9 or 12 month leases. D. R. CAIN COMPANY 3002 S. Texas Avenue Call 693-8850 weekdays 8-5 Call 693-8345 evenings and Saturdays technologies, fiber optics and 64 K-RAM (random access memory) chips. Fujitsu overtook IBM Japan Ltd. as Japan’s leading com puter vendor in the Japanese fiscal year 1980, ended last March, for the first time in history with $1.5 billion volume vs. $1.3 billion. —Nippon Electric Co., with telecommunications revenues of $1.5 billion and electronics data processing system revenues of $959 million, is strong on fun damental technologies, such as optical fiber components and sys tems, bubble memories and solid state devices, speech recognition and robotics. —Hitachi Ltd. registered $982 million in computer sales, ranking third in Japan, and its goal is to export 25 percent of its compu ters. It now exports 7 percent. Stevenson said he does not think the Japanese Ministry of In ternational Trade and Industry runs the whole show in the Japanese computer industry, adding Japanese computer makers are competing fiercely among themselves. Edward Lesniek, assistant to the president of Wang Laborator ies Inc., disputed Stevi view. He argued the Japanese eminent has been pickinguj of the research and devek expenditures lor Japanese tie computer manufacture!! specifically has limited itssi and purchase of computers In tive-owned companies. These practices, he said effect force individual Ann computer companies to cm) with the Japanese govemnr Frank R. Kline Jr., an aar with Drexel Burnham Laid Inc., the Wall Street House, recently published report, Nationa Hen Sr bother the Japanese pose a seriousik n ished to U.S. manufacturersofo ter parts, peripherals, rocessors and small desktopta puters, which he expects toisij rialize over the next 241 months. Kline forecast Japaneseei of computers and their cob nents to the United Statessj grow at an annual clipof2t| cent over the next nine yean the present $800 miliontof lion by 1989. 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