MeteoritesSterling Pub., 1993 - 60 من الصفحات "A wonderful resource....Students will be drawn to read and investigate....The text is direct, interesting, and free of mind-numbing chemistry and physics formulas that so often deter YAs from further investigation....An exceptionally well-done summary."-- "SLJ . "Well-written and nicely illustrated....The technical quality of the book is very good...."-- "Science Bks & Films, a starred review . 60 pages (all in color), 8 1/4 x 7 7/8. |
من داخل الكتاب
النتائج 1-3 من 9
الصفحة 37
... olivine , a magnesium - iron silicate whose gem variety is known as peridot ( Fig . 44 ) . The olivine grains sit in a metal mesh , sometimes with a continuous Widmanstätten structure . This texture indicates that molten metal was mixed ...
... olivine , a magnesium - iron silicate whose gem variety is known as peridot ( Fig . 44 ) . The olivine grains sit in a metal mesh , sometimes with a continuous Widmanstätten structure . This texture indicates that molten metal was mixed ...
الصفحة 38
... olivine crystal . The fragments appear mauve , green and orange . The olivine was probably excavated during impact from the interior of the asteroid . This meteorite fell in Iowa in 1879 after the appearance of a brilliant fireball ...
... olivine crystal . The fragments appear mauve , green and orange . The olivine was probably excavated during impact from the interior of the asteroid . This meteorite fell in Iowa in 1879 after the appearance of a brilliant fireball ...
الصفحة 43
... olivine ( orange ) , pyroxene and plagioclase feldspar , ( barred white and black ) . Some of the aluminum was radioactive , and decayed to magnesium . A AU MNHN 4 FORMATION INTERVAL Almost all the elements , other than. 43 HOW OLD ARE ...
... olivine ( orange ) , pyroxene and plagioclase feldspar , ( barred white and black ) . Some of the aluminum was radioactive , and decayed to magnesium . A AU MNHN 4 FORMATION INTERVAL Almost all the elements , other than. 43 HOW OLD ARE ...
المحتوى
Introduction | 1 |
How do meteorites get here? | 8 |
Where do meteorites come from? | 14 |
حقوق النشر | |
3 من الأقسام الأخرى غير ظاهرة
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
anorthosite Antarctica Apollo astroblemes atmospheric flight basaltic basaltic achondrites basaltic rock blue ice bombardment bright fireball calcium carbonaceous chondrite caused chemical elements chondrites contain chondrules cometary composed cooled core Cosmic spherules crater crystals dark decay feldspar fell formation age fragments fusion crust gravity group IIAB Halley's Comet highlands howardites igneous rocks inches indicates interplanetary dust interstellar cloud iridium iron meteorites iron-nickel metal land on Earth liquid lunar magnesium mare Mars melting mesosiderites Meteor meteorite falls meteorite impact meteorite landed meteorite shower meteoroid micrometeorites million years ago mineral grains molten Moon nebula objects observed occurred olivine orbit palladium Pallasites parent asteroid particles percent nickel planetary planets formed plutonium produced pyroxene radioactive aluminum samples silicate SNC meteorites Solar System solar wind solidified sonic booms space speed stars stone stony material stony meteorite stony minerals Stony-iron meteorite sulfide Sun and planets supernova surface temperature Widmanstätten pattern