472, 
CONTRIBUTIONS    TO    ECONOMIC    GEOLOGY,  1904.         [bull.  260. 
Log  of  ihe  Gnffey  d  Galcy  tcell,  1  mile  southwest  of  Furmington,  Doris  County, 
riaJi — Continued. 
Character  of  strata. 
Hi. 
18. 
19. 
20. 
21. 
oo 
23. 
24. 
25. 
26. 
27. 
28. 
29. 
30. 
Angular  gravel,  quartz  sand,  with  pyrite  and  many 
bits  of  wood 
Brown,  earthy,  micaceous  sand,  possibly  some  gyp- 
sum   . 
Angular  quartz  sand 
Fine,  sandy,  olive-colored  clay 
Greenish  gravel  and  sand 
Gravel,  quartz,  and  micaceous  sand 
Brown  earthy  clay  and  sand 
Olive  clay,  sand,  and  gravel 
Green  clay,  fine  waterworn  gravel . 
Greenish  clay : 
Fine  quartz  sand,  with  pyrite  and  mica 
Brown,  earthy,  micaceous  sand 
Pinkish  clay  and  sand 
Fine  sand 
'l  Bowlders" 
Thick- 
Feet. 
110 
15 
35 
10 
20 
13 
10 
20 
40 
10 
5 
10 
10 
20 
Depth. 
Feet. 
1,400-1,510 
1,510-1,525 
1,525-1,560 
1,560-1,570 
1,570-1,590 
1,597-1,610 
1,610-1,620 
1,740-1,760 
1,790-1,830 
1,830-1,840 
1,840-1,845 
1,845-1,855 
1,865-1,875 
1,875-1,895 
2, OOOzh 
At  the  early  period  when  gas  was  exploited  in  the  adjoining  area  it 
is  reported  to  have  diminished  in  amount  after  a  lime,  and  eventually 
to  such  an  extent  that  the  enterprise  was  abandoned.  The  reason 
assigned  for  the  short  life  of  the  wells  was  their  shallowness  (500  to 
700  feet),  and  it  was  held  that  great  depths  would  afford  not  only  per- 
manent gas,  but,  in  all  likelihood,  oil  also.  The  present  deep  well  par- 
tially disproves  this  assertion.  "  Blowouts  "  of  gas  and  water  were 
encountered  at  several  points,  notably  at  20,  58,  158,  198,  325,  and  390 
feet,  and  several  at  greater  depths.  In  some  instances  these  were  so 
forceful  as  to  eject  the  casing.  But,  so  far  as  known,  no  oil  was 
found.  The  unconsolidated  material  cut  by  the  boring  is  composed 
mainly  of  quartz,  with  some  feldspar  and  mica,  and  the  gravel  shows 
that  the  chief  source  of  this  material  was  crystalline  and  metamorphic 
rock.  The  olive  and  greenish  tints  which  characterize  several  of  the 
beds  penetrated  is  largely  due  to  a  mica  of  that  color  which  probably 
occurred  in  a  metamorphic  schist.  Both  the  mica-schist  and  the 
crystalline  rock  were  doubtless  derived  from  formations  which  occur 
abundantly  to-day  along  the  western  slope  of  the  Wasatch,  overlook- 
ing this  basin  area.  Throughout  the  section  fragments  of  wood, 
blackened  and  somewhat  altered,  were  plentiful.     The  shells  found 
