地幔柱动力学机制新思考.pdf

31 1 V ol. 31, No . 1: 113~ 118 20 12 1 A CTA PET R OLO GICA ET M INERA LOGICA Jan. , 2012 #学术争鸣# 李 晖, 朱貌贤 ( , 4 12007) : M o gan , , / 0 , : : ; ; ; : P541 : A : 1000- 6524( 20 12) 01- 0113- 06 New thi nking about dynamic mechanism of the mantle plume LI H ui and ZH U M ao-x ian ( No. 416 Geolog ical P a ty, Hunan Bu eau of Geology and M ine al Ex plo ation and Development, Zhuzhou 4 12007, China) Abstract: T he mantle plume hypothesis p oposed by Mo gan has been in cont ove sy all t he t ime in spit e of t he fact that it has g eatly p opelled the developm ent of ea t h sciences. T his pape makes a tent at ive discussion on the focus p oblems, p obes into t he possible causes fo the deviation of t he volcanic t acks f om t he p esent-day locus of t he act ive volcanism and the unf ixing of t he hot spot s, and p oposes a new possible dynamic model fo the g ene at ion and cont inual development of t he mantle plume: t he esult of long-t e m act ion by ext at e est ial objects. Key words: mantle plume; ext at e est ial objects; hot spots; plate movement Mo gan ( M o g an, 1971, 1972) , 20 , , ( Ande son and Natland, 2005) , Campbell , G iffit hs 1990 Andeson / 0 ( Ande son, ( Campbell and G iffit hs, 1990) , 2003) Mo gan 3 , ( 1) : ¹ , ; º ; » , , , 3 / 0 , / 0 ( , 2002) , 2000 : 2011-04-22; : 2011-07-27 : ( 1985- ) , , , , , E-mail: lihui107@ mails. gucas. ac. cn; : ( 1963- ) , , , E-mail: zmx720@ yahoo . com. cn 1 14