8. G.rochole!k:i A., lI4Hew'i.ez J. - Uskcxk War-Ita - Osiec~nLca (DoIlny Sll¥ilk). Biul. IG, 1958,
. & 1~9.
19 IM
az
u r J. - Budowa goologicma obs.zaru .pO'-mi~zy Tomirsla:wi.em 'i Parowll na Dolnym SIll-EJIru. Kwar:t. geoL, 1i9165, nr 1.ilO. IM i e I e c k e W. - ZUllll Problem der SiliZ'ilfikate im. den Quarzlkiesen ·und Quar71Sanden des
Eople<.i-stozins.
Ze'itschr. Geol. 100'7, H. 1.1111. iM i1 e w i c z J. - Budowa gealogicozna okO'licy TZebrzydowej. Biu!. IG, 1956, m' lilrl.
lrJ. iM fl e W'l c z J. - Per8lpektywy ebploa taeji ik:war-cyit6w lboleslawieekich. Prz. geol. 1962-, m' 2.
SUMMARY
'ID the Lower Si:lesian area, west of Boleslawrec, in the vicinity of KlicZlk6w and Osiecznica, there are exploited deposits of silIceous sandstOtnes, usually cal-led quartzites. Silicf!f.icatIon aJffected here the feebly iliagenetic Upper lOretacOOUiS sandSltolnes and Middle Miocene saonds with brown coal seams. In the lItera-ture the silicIification has been related
to
the diage-netic processes. The authors have ascertaIned here the occurrence of silica a;nd opal and chalcedony crusts, also on the plaont stalks (atype
of sinters). mountain crystal, veLns of cement quartzites, strongly siUckensided quartzites (siliceous stylomes), as well as siIiceOUB sandstones in the form of ;banks aondcon-oretions. Thus we may draw a conclusion here that
the quartzite deposits situated along a WlNlW-®SE line must have been formed due to silici£i.cation with silica from thermal water. This process is only sligh-tly younger than that concel'mng the sedimentation of !Middle M.k>cene age. The snicificatiO'n accompanies
the surface o.f both lcngitudinal and transversal faults and of similarly oriented fractures. Most of them are thought Ito be of shear plane nature. l1'he strcngest lIillcilfication may he observed at the crossings of the surfaces of discontinuity ·mentioned 81bove.
13. Mi'lewicz J., Grccholski A. - Trzeci()t"z~ pomit:dzy BdlE!S'lawcem a W~~. Diu!. IG 11960, nr lID .
14. Ober cA., Wacl a wski M. - Plaskowce kwarcytowe zlot£a Kleszczowa - K'Wisa. Mater. ogniO'trw. 119165, nr 3.
11'5. Tu r 8 n J. - Zaprava 0' vyskyte limno1cvii«-citov z dblasti Slaska a Luti:la v Ziarskej KotUne. Acta geol.
et
geog.raph. Univers. Oomenianae. - Geol.D.I958, .nr 1.
1116. Raoiecka-iBobrQwska J. - Kq.1ka uwag 0 :wie!k:u kopalnej flory z OsieC'LO'wa oraz w~gla
bru-namago z Turowa. Prz. geoI., 1962, ·nr L1. PE310ME
B HIDKHett CHJIe3ID1, B pattoHe HecTHoCTeR Kmt'l-KyB H Oce'lHHI.\a, K 3ana;!ly O'T r. BCJIecJIaBeIt pa3pa-6aTbmaIOTcR MeC'TOpoJK;!IeHHR xpeMHHCTblX nec'laHH-KCB, Ha3bIBaeMbIX 06bz<UJc napqH'I'8HH. Om! npe,!t-CT8:BJIRIOT CH~Hq:,HQHPOBaaHbIe BepXHeMeJICBDIe neC'laHHKH, B cJIa60tt CTe'IleHH wrareHe3Jq)OBaBH&Ie, H cpe~eMH~euoBbIe necKH, BKJIIO'Iaro~e nJIaCTLI 6yporo yrJIR. B reoJIOI'H'IeCKott Jl'HTepa'l'YPe BbICKa-3bIBaeTCR B3rJIJI,I{, 'lT0 CHH 6bIJIH CHJIHQHIPHqJfpOaaBbI B np~ecce ;!IHareHe3a. A'B'l'CPbI HaOJIIOAa.JIH B 3THX ncpo;!lax HaJIH'lHe KpeMHe3eM:a, O'naJIO'BbIX H X8JIQe-~OHOBbIX o6ono'leK, oXBaThlBaIO~ T8lOB:e H CTe6nH paCTeHHtt. ropHoro xpycTaJIR, napqwroBbIX JKHJI, MeCTaMH c '3epKaJI8MH CKO'JIblKeHHR (KPeMHHCTbIe CTHJrOJIHTbI), HaKOH~ KPeM:HHCTbIX nec'laHHKCB B BH,IJ;e npoCJIO'eB H KOHKpe~. Ha 3'1'OM OCHOBamm BB'1'OpbI ;!IeJIaIOT 38KJIIO'IeHHe, 'ITO 3aJIeJKH KBapQH-TOB, pacnpocTP8'HeHHl>Ie BAOJIb JIHlDdl: HanpaBJIeaHJ! 3C3-<BIOB, 06pB3oBaJl'Hcb B HTOre CHJIHqHIPHKaI(HH KPeMHe3E!M'OM, nocTynBBIIlJfM H3 I'H,lU)O'repxaJIbHbIX paCTBopoB. 3'.l1H nPOIleCCbI npOHCXOAHJIH B He60JIb-mOM npOMeJKyTKe nocne oca;!lKCHalOOIIJIeHHR B cpeA-HeM: MHO'IIeHe. CH~8I\HR OXBaTbUlaeT CHCTeM:bI npO;!lO'JIbHbIX H 1IT0000epe"IHbIX c6pocaa H cOupoBc~a
IOx:qWC wc ~. HaH60JIee HHTeHCHBHOe cJq>eHHe-HHe IIpoRBnHeTCR B MecTBX nepece'leHHR C6POCCBbIX 3O'H.
