Première note sur la géologie de la Faucille (Jura français)

(1)

Article

Reference

Première note sur la géologie de la Faucille (Jura français)

LAGOTALA, Henri

LAGOTALA, Henri. Première note sur la géologie de la Faucille (Jura français). Compte rendu des séances de la Société de physique et d'histoire naturelle de Genève, 1921, vol. 38, no. 2, p. 74-76

DOI : 10.5169/SEALS-741125

Available at:

http://archive-ouverte.unige.ch/unige:150900

Disclaimer: layout of this document may differ from the published version.

1 / 1

(2)

^6e$1&( '8 0$,

/D YLH HQ IOHXUV GHDX DGPLVH SRXU OHV ERJKHDGV QHVW _SDV YUDLVHPEODEOH FDU OH GpS{W ^GH OD NXFNHUVLWH ^D ^pWp H[WUrPHPHQW OHQW _{HW FRQWLQX} ^OHV PD[LPD GH GpS{W pWDQW ^OLpV ^j ^GHVPD[LPD ^GH VpGLPHQWDWLRQ DUJLOHXVH /D YLH SODQFWLTXH QHVW SDV SOXV ^VDWLV IDLVDQWH FDU RQ QH FRQoRLW SDV TXH OD VpGLPHQWDWLRQ RUJDQLTXH

DLW

YDULp VHORQ OH VpGLPHQW

/D QRWLRQ GXQH YLH EHQWKLTXH SRXU ^OHV 3URWRSK\FpHV VDWLV

IDLW

VHXOH DX[ FRQGLWLRQV SRVpHV &HV DOJXHV RQWYpFXVXUXQIRQG PDULQ YDVHX[ ^GHSURIRQGHXU IDLEOHHQ^VHPpODQJHDQWLQWLPHPHQW

j

ODUJLOH

VXU ODTXHOOH ^HOOHV SRXYDLHQW ^VH IL[HU SDU OHXU ^PXFXV EDVLODLUH ^/HV FRXUDQWV ^GH IRQG ÔHV WHPSrWHV SURGXLVDLHQW ^GHV UHPDQLHPHQWV SDUWLHOV ^HW HQWUDvQDLHQW ^GH SUpIpUHQFH ÔHV MHXQHV WKDOOHV TXLOV UHGpSRVDLHQW ^GDQV ÔHV VpGLPHQWV FDOFDLUHV 8Q DSSURIRQGLVVHPHQW RX XQH YDULDWLRQ GDSSRUW VpGLPHQWDLUH VXU YHQDLWLO OHXU GpYHORSSHPHQW pWDLW DUUrWp ORFDOHPHQW 'DXWUHV IRLV XQ H[KDXVVHPHQW DPHQDLW OD IRUPDWLRQ ^GH EUqFKHV FRTXLO OqUHV GDQV OHVTXHOOHV RQ YRLW OH GpS{W RUJDQLTXH UHPDQLp ^HW GpFRPSRVp WDQGLV _TXH ODFFXPXODWLRQ VDSURSpOLWKLTXH ^VH GpSOD oDLW ^YHUV ^GHV ÎRQGV SOXV ÎDYRUDEOHV

8QH pWXGH GpWDLOOpH SDUDvWUD ^GDQV ^OHV ^$UFKLYHV ^GHV ^6FLHQFHV 3K\VLTXHV HW 1DWXUHOOHV

-XLOOHW$RW

+

/DJRWDOD

² 3UHPLqUH ZRIHVXU ^-RV ^HRLRLH ^GH ^D ^3D©FLH

I-ZYw

UDUDoDLVM

$X FRXUV ^{GH OHYpV} JpRORJLTXHV GDQV OD UpJLRQ *H[OD )DX FLOOH QRXV DYRQV UHFRQQX OD SUpVHQFH GXQ GpFURFKHPHQW WUDQV YHUVDL &H

IDLW

^VH WURXYH GpMj LQGLTXp ^GDQV ^OD SHWLWH FDUWH HVTXLVVH TXH $ +HLP GDQV ^VD ^© *HRORJLH GHU 6FKZHL] ^ª _D SX EOLpH GDSUqV ^QRV LQGLFDWLRQV 1RXV ODYLRQV ^DXVVL LQGLTXp ^GDQV

QRV WUDYDX[ FRQFHUQDQW ^OD UpJLRQ ^GH 6W&HUJXH

/D GLUHFWLRQ ^GH FH GpFURFKHPHQW ^HVW : 1 : ^/HV SODQV ^GH

IDLOOH

VRQW QRPEUHX[ 2Q HQ WURXYH VXU OD URXWH ^GH ^OD )DXFLOOH

+HLP ^$ UHROR"H ILHU 6FWWFHW© _S IOJ /HLS]LJ

/DJRWDOD ⁺ ^IWZGH MIHR=RMGJ©H GH IR UpILRª ^GH OD 'ROH 0DW SRXU^OD FDUWH JpRORJLTXH ^GH OD 6XLVVH 1RXYHOOHVpULH ;/9, _)UDQNH %HUQH DYHF XQH FDUWH JpRORJLTXH DX FDUWH VSpFLDOH Q ^GHV ^0DW SRXU OD FDUWH JpRORJLTXH VXLVVH

(3)

6e$1&( _'8 _0$, j 0LMRX[ SUqV GX FDEDUHW ^© FKH] 3KLOLSSH HW VXU ^OD URXWH GH OD )DXFLOOH ^j *H[ 2Q WURXYH QRWDPPHQW ^GDQV OD FDUULqUH ^GH FDOFDLUHV EDWKRQLHQV ^j PqWUHV DYDQW

GDUULYHU

DX ^FRO GH SXLV OD )RQWDLQH 1DSROpRQ ^GHV

PLURLUV

^GH IDLOOH

IRUW

EHDX[

GRQW OD GLUHFWLRQ YDULH GH

:1:

^j ¹ ⁹⁹ /LQFOLQDLVRQ ^GH FHV

SODQV ^GH IDLOOH HVW HQ JpQpUDO ^GH ^DX

1(

^'HV ^FDQQHOXUHV

VRQW LQFOLQpHV _DX ⁶( GH D 'HVWUDYDX[ HQ FRXUV ^HQYXH GH OHYHU OD FDUWH JpRORJLTXH QRXV SHUPHWWURQW ^{VHXOV GH} ^SUpFLVHU

FHV GRQQpHV 1RXV YRXGULRQV IDLUH UHPDUTXHU HQFRUH TXH OH GpFURFKHPHQW D HX SRXU UpVXOWDW GH UHIRXOHU ^j

O:

OD ^OqYUH VLWXpH DX ⁶ GX GpFURFKHPHQW /D YDOHXU ^GX UHMHW ^HVW ^YRLVLQH ^GH

PqWUHV

$ 6W&HUJXH ^OH GpFURFKHPHQW HVW FDUDFWpULVp SDU ^{XQH GLUHH} WLRQ ( : ^OHV UpJLRQV DX ⁶ VRQW GpSODFpHV GHQYLURQ ^PqWUHV

j

O:

SDU UDSSRUW ^j ^FHOOHV ^{VLWXpHV DX} ¹ ^GH ^{OD OLJQH} ^GH IUDFWXUH /H UpVXOWDW GH FHW DFFLGHQW _{HVW TXH} ODUF GX -XUD ^VH WURXYH DOORQJp ^GH ^j PqWUHV 1RXV YR\RQV TXH SRXU OD )DXFLOOH

LO

\ D XQH FHUWDLQH DQDORJLH DYHF ^FH TXL ^VH SDVVH ^j 6W&HUJXH (Q HIIHW OHV GLUHFWLRQV GH IUDFWXUH ^VH UDSSURFKHQW SDVVDEOHPHQW DLQVL _TXH OHV YDOHXUV ^GHV GpFURFKHPHQWV (QILQ ^GDQV ^OHV ^GHX[

FDV FHVW OD OqYUH ⁶ TXL ^HVW ^DYDQFpH ^j

O:

SDU UDSSRUW ^j ^{OD OqYUH} 1 5DSSHORQV TXj 9DOORUEH OD JUDQGH IUDFWXUH ^HVW RULHQWpH GX 1 DX ⁶ HW TXpWDQW ^GRQQp ^OD GLUHFWLRQ ^GHVFKDvQHV GX -XUD ^FHVW OD OqYUH ( TXL HVW DYDQFpH DX ¹ 7KpRULH ^GH +HLP /D )DXFLOOH

YLHQGUDLW

GRQF FRQILUPHU FH TXH ^QRV UHFKHUFKHV VXU 6W&HUJXH DYDLHQW GpPRQWUp j VDYRLU _TXH ORUVTXH OH GpFURFKHPHQW ^VH

IDLW

VHORQ OHV GLUHFWLRQV YRLVLQHV GH ( ²: ^FHVW ^{OD OqYUH} ^VXG TXL

HVW UHIRXOpH j

O:

/HV FROV GH 6W&HUJXH PqWUHV ^HW ^GH ^OD )DXFLOOH PqWUHV VRQW GXV ^j GHV FDXVHV LGHQWLTXHV FHVWjGLUH ^j OD IRUPH DUTXpH GX -XUD HW DX SKpQRPqQH GX UHODLHPHQW ^GHVSOLV ⁽ SDU

GHV SOLV SOXV ^j

O:

DFFRPSDJQp ^GH IDLOOHV TXL RQW FUpp XQH ]RQH GH PRLQGUH UpVLVWDQFH

3DUPL ^OHV IDLWV _{TXH QRXV} YRXGULRQV VLJQDOHU HQFRUH FLWRQV

/D _SUpVHQFHGH WHUUDLQVFUpWDFLTXHV DIIOHXUDQW VXU^OH^FKHPLQDX

6 GHV &RODUGHV 1 ^GH *H[ HW DX

1(

^GH OD 0DODGLqUH Pq WUqV HQYLURQ6(GH OD )RQWDLQH 1DSROpRQ /HV FRXFKHV VRQWIRU WHPHQW LQFOLQpHV _{DX 1}: IRUPDQW _XQ

DQWLFOLQDO

^GpYHUVp DX 6(

(4)

6e$1&( '8 -8,1

FH TXL ^HVW GpMj ^OH FDV SRXU ^{OD UpJLRQ} ^DX ¹ ^GH /D 5LSSH 6XLVVH

/H UDYLQ ^GX -RXUQDQ TXL ^FRXOH DX

11

: ^GH *H[ PRQWUH

GH OD PRUDLQH j pOpPHQWV ORFDX[ FDUDFWpULVWLTXHV /D YDOOpH VHORQ QRXV HVW DQWpZXUPLHQQH HW ^OHV JODFLDWLRQV ^ORFDOHV

ODX

UDLHQW SDUWLHOOHPHQW ^FRPEOpH $FWXHOOHPHQW VRQ

OLW

^HVW

^WDLOOp

^GDQV

FHV GpS{WV PRUDLQLTXHV HW SDUWLHOOHPHQW ^GDQV ^OD ^URFKH HQ SODFH

$X[ 3RUWHV 6DUUDVLQHV OH

WRUUHQW

WUDYHUVH HQ FOXVH OHV PDVVHV FDOFDLUHV

6pDQFH GX

MXLQ

/pRQ:

&ROOHW

^HW ^(G ^3DUpMDV ² 1K<WeKUDSH Gª 1H9LL PHZIDLUH DZIRH$IRZH GH D _0ZAUDX %TMRFLHZ %DILRPHZ

&DGRWLHUH

'DQV XQH QRWH SUpFpGHQWH QRXV DYRQV PRQWUp TXHQ FHUWDLQV SRLQWV GX 0DVVLI $LJXLOOHV 5RXJHV*DVWHUQ ^OH /LDV PDQTXDLW /H 7ULDV VXSSRUWH XQH VpULH WUDQVJUHVVLYH TXL GpEXWH SDU ^GHV FDOFDLUHV pFKLQRGHUPLTXHV TXL SDVVHQW JUDGXHOOHPHQW ^j ^GHV ^FDO FDLUHV _DYHF LQWHUFDODWLRQV _PDUQHXVHV ^'HV IRVVLOHV UpFROWpV SUqV GH 6WHFKHOEHUJ ^HW VXU ^OD YLUH TXL FRQGXLW GH OD ^© .DOWH

%UXQ

QHQ ^ª DX 6FKZDU]0|QFK _QRXV SHUPHWWHQW ^GH SUpFLVHU OkJH ^GH

FHV IRUPDWLRQV 'DQV OH 0DWWHQEDFK _SUqV ^GH 6WHFKHOEHUJ QRXV DYRQV UHOHYp OD _FRXSH VXLYDQWH ^GH ^EDV HQ KDXW VXU ^OH 7ULDV

OD

&DOFDLUHV JURVVLqUHPHQW VSDWKLTXHV JULVQRLUV ^DYHF ^pOp PHQWV GRORPLWLTXHV ^j OD^EDVH P

j &DOFDLUHV ILQHPHQW _VSDWKLTXHV JULV P

&DOFDLUHV JULVEUXQV ^j ^{OD VXUIDFH} ^QRLUV ^j ^OD FDVVXUH ILQH PHQW VSDWKLTXHV ^j OD _{EDVH P} R QRXV DYRQV WURXYp

VMVjDHURLGD=LV 6RZ ^H[

! LPqULD ^6RZ ^ª

ª 0RUULV ^ª

LIbMYLF$RWHKD ^RqVRH=UW ^6RZ ^ª

ª 2M' PVL 0F &R\ LQ .LOLDQ 5HYLO $OSHV ^RFF ^ª

2ROLWKH IHUUXJLQHXVH P

/pRQ: &ROOHW ^{HW (G} ^3DUpMDV ^/H F7PAHDZ GH VHGL0LHUFWD9H GHV

$LAI0vGHV L=R0JHV GH &jDPHPGH HW ^=H /QDV ^GZ -IUWVV= ^$=A0v==HV L=RZAHV

*DV=HP & 5 6RF SK\V HW KLVW QDW ^*HQqYH ^YRO Q _S

Première note sur la géologie de la Faucille (Jura français)

Article

Reference