370  METAMORPHIC  ROCKS  AROUND  THE  SHAP  GRANITE.  [Aug.  1 893. 
The  spotted  slates  and  ashes  which  we  have  described,  where  the 
spots  are  spaces  relatively  free  from  brown  mica  {op.  passim  cit.  pp. 
307,  319),  may  be  taken  as  positive  evidence  of  the  transference  of 
ferrous  oxide  from  point  to  point  in  the  rocks.  The  radius  ot  the 
spots  is  not  more  than  about  inch,  a  distance  similar  to  that 
found  for  the  interchange  of  lime  and  silica. 
VII.  List  of  Metamorphic  Minerals  of  the  Shap  District. 
We  append  a  revised  list  of  the  metamorphic  minerals  noticed  in 
the  Shap  district,  but  such  a  list  cannot  of  course  claim  to  be  ex¬ 
haustive.  It  has  been  shown  that  basic,  intermediate,  and  acid 
lavas  and  ashes,  as  well  as  pure  and  impure  limestones,  slates,  and 
grits,  all  come  within  the  metamorphic  aureole,  and  further  that 
the  results  were  often  modified  by  the  effects  of  meteoric  agencies 
prior  to  the  intrusion  of  the  granite.  In  the  great  variety  ot  phe¬ 
nomena  resulting  from  such  conditions,  it  is  probable  that  many 
points  of  interest  remain  still  untouched. 
Basic  Lavas  and 
Ashes. 
Intermediate 
Lavas  and  Ashes. 
1 
Acid  Lavas  and 
Ashes. 
Calcareous  Bocks. 
Argillaceous 
Rocks. 
Quartz  . 
* 
* 
5k 
* 
Orth  oela.se . 
* 
5k 
5k 
* 
PI  a, cri nc.la.se  (various)  . 
* 
* 
5k 
'  5k  1 
White  Micas  . 
5k 
5k 
Brown  Micas . . . 
* 
* 
* 
■A" 
5k 
OhlnVltpS  . 
5k 
Prom  nil  to  . 
•it 
5k 
Actmnlifp,  . 
* 
f-rvppn  ITnrnhlpnrlP 
* 
* 
0) 
Wnllast.nmtp  . 
>k 
TjI  mP-JBIlD  lf  P  . 
* 
5k 
Plmrlnfp  . 
* 
* 
Tf]  oprft.cip  . 
❖ 
5k 
• 
T,imp-o*n  r*npf  (  hi  rpfVin O'Pn t,  i 
>k 
5k 
Cnnimnn  (lampt  . 
Tnnnnalinp  . 
(*) 
■  (*) 
Soil  PUP  . 
* 
7?  n  tilo  . 
7T 
* 
Ann.t.nftp.  . . 
Tlmpnite  . 
* 
0. 
* 
M  ;iP'n  eti  to  . 
* 
5k 
Of 
* 
Pvrit.p  a.nrl  Pvrrhotite . 
* 
* 
5k 
5k 
5k 
Apn.t.itp  . 
(*) 
5k 
.  1 
Anrlalnsitp.  . 
5k 
-it  ? 
1  IiqIIipiip  nr*  f  kTn/nitp  . 
5k 
Silnmamt.e  . 
* 
.  I 
Pa.lcitp  nnrl  lAolmmtp 
(*) 
* 
. 
(rraploto  . 
*? 
1 
