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 8
الصفحة 42
... mineral was high , then more lead - 207 and lead - 206 would have been ... grains were produced . Formation ages of both types of meteorite are close ... grains of different minerals . from a single meteorite . In either case the ...
... mineral was high , then more lead - 207 and lead - 206 would have been ... grains were produced . Formation ages of both types of meteorite are close ... grains of different minerals . from a single meteorite . In either case the ...
الصفحة 52
... mineral grains from the atmospheres of stars . Furthermore , the " solar " composition of chondrites ( see p . 21 ) suggests that their origin is intricately bound to the formation of the Sun and planets , and therefore to ourselves ...
... mineral grains from the atmospheres of stars . Furthermore , the " solar " composition of chondrites ( see p . 21 ) suggests that their origin is intricately bound to the formation of the Sun and planets , and therefore to ourselves ...
الصفحة 53
... mineral grains in a few dozen meteorites . The carbon , silicon and nitrogen within the grains were produced by nuclear reactions in different , mainly red giant , stars about 100 million years before the Solar System formed . It is ...
... mineral grains in a few dozen meteorites . The carbon , silicon and nitrogen within the grains were produced by nuclear reactions in different , mainly red giant , stars about 100 million years before the Solar System formed . It is ...
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