KPnCTAJIJBUECKIJI UUPOAU 01) CliBEPHArO nOBEPEatbfl CMBHPH. 



53 



28%. EcjiR riocjifeAnee qncjo aacjiyacHBaeTi, AOB-fepia, to H3^ 3Toro BbixeKaexi, hto rpaHaii., 

 He coAepacHTi nSBecTn. 



BbiiHCJieHie Mnnepajibuaro cociaBa, cooTBtxcTByiomaro 6ojite hjih meai-e HCTHUHomy, 

 njiewb K0M6nHan,iH okhcjiobi, npe^ciaBJifleTCfl HeB03M0H?HbiM^ bti sHAy BXOAamnxT. bt> riBtxHwe 

 MHHepajbi oemnxT) ocHOBaHin. TaKHMH MHHepajiaMH nai rJiaBHbixT> flBJiawxcn: Sioxnxi., Kop- 

 Aieprr-L, rpaeaxij, cnJUinMauHXT); h3t> BXopocxeneoHbix^: luiiHHejib, aHXO<tHJiJinxT., xypMajineT). 

 OcxaBjflfl noKa Gest BeHiuaeiH poJib SioxHxa h He6ojibmia KOJiHqecxBa xypMajinna, He jiHUine 

 eme past noA'iepKHyxb BbicKaaanHoe npa OHHcaniH sneqaxjiiHie oxt BH-femnaro BH^a HCA^Jin- 

 Mbixt CHJijiHMaHnxa («ToqHO oSjiOMaeobia, peaopSHpoBaeHbia MexejiKH», crp. 48), uinnHejiH 

 («CKejiexoo6pa3Hbifl cKonjieHifl») h anxooHjjHxa («MejiLqaHmia npn3MoqKH»); ohh HMtioxt xapaK- 

 xepi ocxaxKOB'L KorAa xo Sojie moiaho pa3BHxaro noKOJifeeia, hxt> mohqo Ha3biBaxb pejinK- 

 xaMH. EcJiH 3X0 xaKiD, xo npeBpamenie axon rpynribi MneepajiOBi ujjio bx HanpaBjeHiH ubint 

 rocnoACTByiomeH MnnepajibHOH KOMgHHauin, 6bixb mom&n, cjitAyromHiMT) nyxeMTi: 



aexo*HJi;iHxi -+- mnHHejib n- CHjiJiHwaHHTX) -+- 3 KBapmi ;^ KopAiepHXT> ^), 



H 3a iipeBpameeie, HanpaejieHHoe bt> cxopony KopAiepnxa, roBopnxi xo o6cxoHxejibcxBo, qio 

 no coctAcxBy axoii pejBKxoBOH rpynnw MHHepajioB'L ocKJiroqaxejibHo xopomo pasBHxi KopAie- 

 paxTj, — TTo JitByK) cxopony ypaBHeeifl pacnojioateHbi MHHepaibi, ycxonqnebie npn bwcokhxT) 

 xeMnepaxypaxi, MeatAy x-femi. KaKXi KopAiepnxi, BfepoaxHo, o6pa3yexca bi H-fecKOAbKo hhoh 

 oScxanoBKt, xoxa OHt h BCTpfeiaexca B'b nsBepateHHbixt nopoAaxi), ho Bce H<e bt, hhxt> Kpn- 

 cxajiJiH3yexcfl npH oco6bixT> ycjOBinxi^). — Ho Bcinn. npH3HaKaMx>, sjifkcb HM'feeit m^cxo cjiyqafi 

 HeycxaHOBHBmaroca paBHOBtcia CHcxeiubi nsxi xpexX) KOMnoHenxoBx. (ecjiH ji.m 3xoro cnen,iajib- 

 naro cjiynaa noKa ne cqnxaxbca cl ocxajibHbiMH cjiaraK)m,HM0 nopoAy MnHepajraMH), nporaeAinefi 

 qepea^ HOHBapianxByio xoqKy (xeiunepaxypbi h AaBJieHia) ohxh xbopabixi *a3^ ^), h ecxfeACXBie 

 MCAJinxejibHocxH peaKiim coxpaHHBmen oxneqaxoKT> 3xoh xo^kh. IlpHcyxcxBie rpanaxa Henpnaya;- 

 ACHHO o6T.flCHflexcfl HenojiHbiMT. H30Mop*H3MOM^FeOHMgO([Fe203H AlgOJ HacKOJbKO XBaxaext 

 3MnnpH3MT.) bT) KopAJepHX'fe; H36bixoKx> FeO HAexi na oSpasoBanie rpanaxa no ypaBHeniio: 



[SioxHxx -4-] 3 aHxo*HJiJiHXT> -+- 2 mnnnajb ■+- 2 CHJUiHManBXT. -4- 7 KBapn.^ t^ rpanaxT. -h 



-+- KopAiepnxx. [-t-Kaji. noj. mnaxi]*). 



CjiiAyexi o6paxHTb BHrnwanie na xo, qxo bi o6ohxt, cjiyqaaxx>, npn peaKnin, HanpaBjenHoii 

 BT, npaByio cxopony, B'b cxopony o6pa30BaHia KopAiepnxa (h rpanaxa), naSjiOAaexca snaiH- 



1) 9to npeBpamenie mowho BbipasHTB cji4;iyK)ii],HMH 

 ynpomeHHBiMH *opMy;iaMH : 



MgSiOg -I- MgAlaOi -+- AlgSiOa -t- 



-4-3Si02:^Mg2Al4Si50is. 



2) Cp., Hanp., A. Bergeat, Der Cordieritandesit von 

 Lipari etc. N. Jb. f. Min. B. B. 30 (1910), cxp. 575—627, 

 a xaKJKe J. Morozewicz, T. M. P. M. iS (1898), CTp. 22. 



3) P. Niggli, tjber Gestelnsserien metamorphen Ur- 

 sprungs. T. M. P. M. 31 (1912), CTp. 482. 



4) CooTB-feTCTByK)iu,aH neperpynnHpoBKa npocrtii- 

 lUHXii <i>opMy.iii> BupasHTCH B'b cjii/iyiomeM'B : 

 3 KSi03+2 RA1204+2 AlgSiOs | + H2KAl3Si30i2R2Si04] + 

 + 7 SiOa;^ Fe3(Mg3)Al2Si30i2 + H2Mg4(Fe4)Al8Siio037 + 



+ [+ KAlSi308] 

 rA^fe R = Mg, Fe"; btj axoin. caynafe 'ihcjio KOMnoHeHTOBt 

 yBejiH'iHTca oahiimtj, laK't KaK-b MgO h FeO aBJiamca 



OTHaCTH HesaBHCIIMtlMH KOMHOHeHTaMH; COOTBtTCTBeHHO 



yBejiHHHBaeTCfl hhcjio xBepAuxt •tas'B. 



