D
EUXIÈME
PARTIE
C
OQUILLAGES
& M
INÉRAUX
1RXV DYRQV OH SODLVLU GH YRXV SU©VHQWHU OD FROOHFWLRQ GH FRTXLOODJHV PDULQV TXL IXW SDWLHPPHQW U©DOLV©H GXUDQW SOXV GH
TXDUDQWH DQV SDU 0U %DWLVVH XQ JUDQG SDVVLRQQ© GHV VFLHQFHV QDWXUHOOHV HW SOXV SDUWLFXOL¨UHPHQW GH FRQFK\OLRORJLH \ VRQW
UHSU©VHQW©HV WRXWHV OHV IDPLOOHV GDQV XQ HQVHPEOH KDUPRQLHX[ HW GÖXQH JUDQGH GLYHUVLW© GH FRXOHXUV IRUPHV JUDSKLVPHV
$ KDXWH SRUW©H HVWK©WLTXH HOOH UDYLUD OHV DPDWHXUV HW FROOHFWLRQQHXUV