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 4
الصفحة 42
... decays to lead - 207 and uranium - 238 to lead - 206 , but at a much slower rate . If a mineral or meteorite has ... decay of uranium to form lead , which occurs at a known rate . We use samples from either a number of related ...
... decays to lead - 207 and uranium - 238 to lead - 206 , but at a much slower rate . If a mineral or meteorite has ... decay of uranium to form lead , which occurs at a known rate . We use samples from either a number of related ...
الصفحة 43
... decay of uranium is calculated . From this the time since the meteorites were hot can be calculated- that is , the ... decayed to magnesium . A AU MNHN 4 FORMATION INTERVAL Almost all the elements , other than. 43 HOW OLD ARE ...
... decay of uranium is calculated . From this the time since the meteorites were hot can be calculated- that is , the ... decayed to magnesium . A AU MNHN 4 FORMATION INTERVAL Almost all the elements , other than. 43 HOW OLD ARE ...
الصفحة 47
... decay of palladium in the metal can be calculated . Results indicate that the asteroids formed , melted to produce ... decay of radioactive palladium . The troilite contains more silver , but no measurable excess from palladium ...
... decay of palladium in the metal can be calculated . Results indicate that the asteroids formed , melted to produce ... decay of radioactive palladium . The troilite contains more silver , but no measurable excess from palladium ...
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