. Report of the ... meeting. s pressure producing the new views regarding the production of plasticity in rocksmay lead to the disregarding of more simple explanations. The view which has recommended itself to me, is, that the mica-schists and gneisses of Omeo were produced by the co-operation oftwo causes—first, pressure which caused a scliistose structure andan abundance of finely comminuted material,—and second, thechemical action of mineral solutions which were partly containedin the original rocks and partly produced during the longcontinued course of increasing pressure and
. Report of the ... meeting. s pressure producing the new views regarding the production of plasticity in rocksmay lead to the disregarding of more simple explanations. The view which has recommended itself to me, is, that the mica-schists and gneisses of Omeo were produced by the co-operation oftwo causes—first, pressure which caused a scliistose structure andan abundance of finely comminuted material,—and second, thechemical action of mineral solutions which were partly containedin the original rocks and partly produced during the longcontinued course of increasing pressure and rising temperature. These views, which are suggested by the observations recordedin this paper, are indeed almost those formulated by Lehmannwhen speaking of the granite magmas in his great work.* Thatthis is so may lead to the reasonable belief that the explanationis at any rate, in its broader features, a sound one. * Op. cit,, p, 54. 11-1 pllfWIsiM?: .^^ rj--«ji5B5Mi|ii||| •,»„.^....p«,-^|p?=!;=5 ^wm • 5S3Sui. 1 j- ililliilii ^ J rf«-«.-2tfE:-«;£er«22njjK ? 1 i 1- 1 ....... 5 1 1- ^^iiili! 1 1 Illlllll§^ll . j 1 . :2= . .8 :§ i . J . =^. i. i- ^ i 1 ° 1 1 IliiiliiSlillli ? iS s 1 iiKllillilll 1 8 ! 1 §M i J ...... if 1 ^ 1 J- 1 * 1 l5||||r,||S|S|||. 1 i siS-iiiiiisiiiii ^ 1 S38S=j=S6SS8l§S!SIJi!-il i KiPsiiiiiiaiiiiBiii 1 1 J ...|5=f-^;- - ;q 1 J ---S,.„;....J=.iili 1 •11 1- i 1 s i 3| i « 1 1 1 i r .....^|il||i| 1 J |..-^-!i5ll| 1 1 i- ^«s=!..|||||SlliH-IHS| 11 i 11 li i i .. I = ^V! - ^ - =3 ...fcl_:,„._,j| t iiiiiiiiiiiiiisiiiiiiiii j 1 r iiiiiiiiiBiiiiiiiiiiiiii 1 1 p!i«l5^lll!-5liM|liiliiii||il||| 1 1 lii ?58 1- 1 !iiiPii!!;,:„..;-::,..,::p|M| 1 j« J 1 |i 1^ Ei,8||gl||i||M.|||| | 1 apS|C=S|sa,gS5i=::sS!:S3SS-sgsS| i ; 11 jfl i« .....s=^^i|p5riiiw| 1 ,.,,,,,,, .s-sa8-||pf3S5s|g- 1 ! Is i« ..........ii|lBH|5^| i ......... iJiPSHI ?? I 1 1 r ...., ,«....j«iiiiililH 1 t . S r
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1888
