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ѧҽ߿Ƽֶηȫƽ

ʷ|2019-5-29 11:15

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ѧҽ߿Ƽֶηȫƽ

ѧ˵Ȼ˿һֱǸšоܽķֻм֣ټȻ˿亱ûԸлƻṹļ⡣ڣѧ״ø߿ƼֶζȻ˿ľṹоŪЩصľγɵġ

ͼTHE MINERALOGICAL & GEOLOGICAL MUSEUM AT HARVARD UNIVERSITYCOPYRIGHT 2012PRESIDENT AND FELLOWS OF HARVARD COLLEGE

׫ģMAYA WEI-HAAS

1887꣬ݵĻƽӽʱ򸽽һ벻һ״Ľֳ롣θ12֣Լ0.23Ϊֵֹƽ

ѧĿѧJohn Rakovan˵ȷʵһһ޶Ʒûκζ֮ȡȻƷڿѧҲڲ֮ûԸ𻵻и֪Ȼ˿бҪIJԣŪγɻơʮһֱһš

ڣоԱ˹Ī˹ʵһ̨0.8ﳤӼİ£״ζΪ֮ǡľƷооʾǼʮĽ˿ɵ״ʵҪôһ޴ľ壬Ҫôһ

Ȼ˿оδͬ־ϷѾʼ˹Ī˹ʵһоۡݵĹݳRaquel Alonso-PerezƣĿǰоδоܻ㷺Ӱ죬ٳɸЧIJɿͷֻƽ;Ŀǰ֮ǡڹݡ

ѧҽ߿Ƽֶηȫƽ

1931꣬УѡĵĿղؼAlbert C. Burrageȥ֮ǰ֯һռղƷڱͼУһֲƷ͸ݵĸУ1500ƷУһر󣺹֮ǡ

ͼTHE MINERALOGICAL & GEOLOGICAL MUSEUM AT HARVARD UNIVERSITYCOPYRIGHT 2012PRESIDENT AND FELLOWS OF HARVARD COLLEGE

ȻѧݵѧݳJames Hagadorn˵ǵо˼飬ǽһʵоɹҲǵͬо ȻѧԿݵȻ˿

ⶼǷdzӱdz˷ܵоɼȻʷݵĿѧݳAaron Celestian˵òҲȻ˿

ɻƽܻ뵽Ľ黭棬ƽ˳ˮµĹбˮɽ顣ƽȻȡˮʯ϶ʱҲԱ˾̾ľ塣Щ䳤ͨΪȻ˿

еɲһϣǴģ Hagadorn˵

Ȼֹ⻬Ľ˿ԱȽϳȻ˿ȴΪHagadorn˵ֽӿԴİ۱ϳͺǴѻмһ˵Ȼƽ˿RakovanƣĿǰ֪ܲƷĽһֻ־

֮ĿǰڹѧĿѧ͵ѧݡ20ڣΪУAlbert C. BurrageղƷһ֣֮DZ͵Ҳݡڷֹ֮ǵ㣬ֵΪ160Ԫ൱ڽ4500ԪڰȫǣRakovanܾ͸¶ĿǰļֵֻDZʾֵһǮ

ѧҽ߿Ƽֶηȫƽ

֮Ƿ1887꣬ΪֵֹȻ˿ǺܿʶϡкDZڼֵ1893꣬ġˮ롷־Ϸһƪ£һ顰ضĽӡ

ͼTHE MINERALOGICAL & GEOLOGICAL MUSEUM AT HARVARD UNIVERSITYCOPYRIGHT 2012PRESIDENT AND FELLOWS OF HARVARD COLLEGE

20182£ͼɭһһȵĿ鱦չϣAlonso-PerezRakovanȡϵ˽о֮ǵȤRakovanȻǵСʱڲιʱչƷû˿ԥŶ˹Ī˹ʵҵоԱ˺ϣͨƻԼ빫֮ǵľṹ

Ҳһ޴սһһϵаȫЭ޼֮͵īݡ

ǻ˼µʱ׼ļ涨ߣ Alonso-Perez˵˵ںʩ˿չоֻļǿӻ˳̤ó̡

˹Ī˹ʵӿѧĵѧSven VogelƣҾֹ򱣴мֵĶ

˹Ī˹ʵңоСӺ֮ǹԭӵԭ֮һԴ͸ƽı档Щײṹ󣬻ͬƶڵɵɢֻͨż·˶Խ࣬ɢӵ˶·Խɢң۲쵽źžԽģ

оСķʾ֮ǺֻܿɣôࡣоС黹ԸױǵһСöȻ˿ƷɵƺҲɷdzٵľ幹ɡ

һȻ˿γԱȡȻ˿Ȼ˿ƣֻǸΪ֮ǰоУоԱЩƷи໥ӵľɡ

Ȼ˿оԱѰ˱յӣһ˾ȵʵȻ˿ʵ϶Ǻ30%ĽϽо˹Ī˹ʵҿչһоʹǿx߽̽⣨ҽѧɨʹõxǿ100౶ܶƣ˹ɳɷҲƵġ

ѧҽ߿ƼֶηȫƽAlbert C. BurrageλڲʿļеĿչƷǰ档

ͼTHE MINERALOGICAL & GEOLOGICAL MUSEUM AT HARVARD UNIVERSITYCOPYRIGHT 2012PRESIDENT AND FELLOWS OF HARVARD COLLEGE

ʹ

·ζʲôдۣڡѧ־ϵһоܻṩһЩо̽Ȼ˿γɻơоУRakovanһоԱͨϳ˿γɻơ16;׼أʱұĿ󹤱˵ұڼ俴Ľ˿µоУоͨϴ¶ݶԺϳ˿ʱƵķ

Rakovan˵˿γԴһʣνijӴҲ˵ݶȶȻѹݶȵİ£ӻԾ˵ٶȴԽ̬ʯЩԭӾۼı棬ս˿ļ롣Ÿۼĵײ˿ͻڶ̶̰СʱڣоԱ0.7ֳ˿

Կ˿ǰ Rakovan˵

оԱƲ⣬ٶȾȻ˿д˶໥ӵľԭ򡣻ƽĻԸҲȻγٶȿܾͻöܹ࣬γɸٵľ塣Rakovaṉһשǽ

ؽһשǽὨһƽֱǽÿ˶æذשͷȥȻճһǽͻȱݡӱϽЩȱݾǣ壩߽磬˵δо߽ͨ߿ƼֶζԻƽͰоҳһЩ𰸡

Rakovan˵ڹȥǶȻ˿ʶ˹ȥ400ꡣǵоʹdz˲𡣡

Alonzo-Perez˵оŸ壺Ҿ˲ݲƷʹ˵

ȻǹҪɲ֣Ҳһ⣬ΪδĿѧȻʷѧͨIJӵ⣬ӼоһǰֵĻƽ

ݵĴƷչģιۺͣ˵ΪײݲƷĿڿѧоƶѧǰչ

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