...

池 端 Q Report of the Scientific Field-trip, 15th Annual

by user

on
Category: Documents
6

views

Report

Comments

Transcript

池 端 Q Report of the Scientific Field-trip, 15th Annual
 /* (,**/)
0 .3+ῌ.30 +/ Report of the Scientific Field-trip, +/th Annual V. M. Goldschmidt Conference
Kei IKEHATA
+ \-
…„†][043X\-
-.‡^
C3
,**/ / ,* ,/ +/ ,679/0ˆf345&MN`‰Š(_
!"#
`
‹a3<{ŒD +*- ˆfvw$%
VbcY(
$%&' (
)*+,-.
7T / h
NcY( + hI{%
/012345&,6789:;<
&' NcYI{%& Kibbie Dome (
/F
=>
+322 + ?
@38
ŽaM T /1* & m,U H3‘’dT
(A
BC("#$%DE&' 4FG
`ŠR;' __(
“”•M–—e<
&7(
+223 8$%&H
˜™fšM45D›{%;M—
<7
IJ +
KL
FœR;' g
hi(_Š8r0
K!Q"8R;
D–žƒjŸ $%&!
klF
MMNOMP +
8S#:; T$ +U' (%V! , &%
Nˆ!¡mr¢£5&'
B'(!79W)40XLM
~)n8¢<Xopœ!8(F0
M4.*$F+,YR;' Z[
&¤
q’~)(ŽaMT7r (Wallace
78-.:;( Palouse Hills 4\]%;/0
Complex) 8op5&' s¥(
Web t (http : //
123F;^45!6E
__(*7
8
www.the-conference.com/,**//gold,**//index.php) 8¦
`ab9c:!;dR;' -.:; +* (<
Y$%D0;~u$%&0'
8(efM40XY3=g5&!
_Y8(LM
M>7!R;' , hY(?iY4\]%;j
- k@6
lm
noApB!;d
YK8(a
-ῌ+ P!qI5Drs
74LMM
v'8(w$ 0/* km, +** km §
>77C(DEFG!E;'
xy¨
©2zy¨!R;' B{|({©
H4<C8(thIu!vw$%&'
2zy¨4\]%
xyM(B}{8S
J)( KL4 MNC8xyMO
#:; T$ +U' {©2zy¨4xyM
PzI{%&Iu |Extrusive A-type magmatism of
(q~ª«¬!€5D0;' _%(
­®x
the Yellowstone hot spot track} 8~5&' __(H
yM¯8R;N89W5Dr
8 €Q3RS5&C
IuTU38V
s
€(
{©2zy¨v°±M
:;'
+0./ Ma 8²G&' }e±!v‚³8Kn
cm ´ƒ5D0;&¤
€„(}{‚³xy
, M8³GD…’F; T$ +U' _%ª«¬q
‚W3X4,ƒ0
,T'„YZ[043X
’( A-type fµf67_†3h' A-type fµf
¶++-ῌ**-- {·‡@·¸
¹ 1ῌ-ῌ+
{·77ºˆ7)=>»,‰Š»7‹¼
Department of Earth and Planetary Science, Graduate
School of Science, University of Tokyo, 1ῌ-ῌ+ Hongo,
Bunkyo-ku, Tokyo ++-ῌ**--, Japan.
e-mail : [email protected]
£ ¤
492
¼
5>?*+,- ABCDEF ( 5@ +1 Ma
@Y +../ Ma $%& l*mA%nF
(*+,- BCD +0 E km, FD +1 E km- *
EGHIGH@@YoCCG pqrCG$@h0
sB5,- I(JK -** Lt, 7
Muv*+,- >?@.@NOP
QR%0,- (AS*TU*+^ >w$;
,9:*V6 xyW%&Sun Valley XHz$ Y{|}~$123
&5SJKL*+,EGHIJKL iZ 1/ km€
+** kmj sB5,- STOP, *<'(>?
9:%&- >?5@Y[‚['(*+,
1}$ƒ\%& , ]E„…G †^_(
(`9:*‡&- EGHIJKL!$
S-type, I-type '(*+,abch&Sun Valley *9:%&ˆ>de$!f* oG
; +
=>;- µ—G¶ ˜—=
>- ·¸"K™=*š3&s- ›
—*¹3&@L‹˜t™- œºX
„q\3žg- + $Ÿ² » ¡
¢ 2 3 , > § … } & K ™ 1 o ~
iSmith and Siegel, ,*** $;,j-
‰qLGCŠ‹ghŒi*+[&- jk}
+ Žl$m^ V"($;[0‘o’GC
n[&=ab , o“`a3 )W(1”*
p•a23&-ῌ- ῍ῌ , ῎῏
– Sun Valley qHZ 0* km $—r5, Little City
of Rocks $g@[& (STOP-)- <sL‹˜t
™?šu›$—r5,- L‹˜t™. v
! "#$
w%&IL’$œx%&83ž
%&'(( + )*+, ;
yD%0,- 7?]TJz(8Ÿ* {
I-type (igneous source type) S-type (sedimentary source
ž |(*+,'((
type) A-type (anorogenic type) M-type (mantle source
$ ,./ km, ž}&* +* km £*+,<l
type)- A-type .*/%0123&
~¤¥¦C ¤$;[0@[0,- <
…¡¢…G@
A-type '(!45,&6$ 7*+
Jz(8Ÿ +0./ Ma @Y€^ pqr
,8(9:%;<=*+
CG@YGMBLC$@h0Z 1** km >§
,- =>$<?@$ABCDEF
…yW*‡, i; +j- IL’\3%0J
( EGHIJKL GMBLCN!OP"
z(8Ÿ‚ƒ%&} <z1F„
#$ Butte Q%RSTU&'-
…˜¡˜L}$S[&&6 '$1
V"( Carol Frost (University of Wyoming) Mike
23 F ( iL‹˜t™F (j †
McCurry (Idaho State University) Bob Christiansen
&- <;SJGˆH>83 5‡¨ˆ
(USGS) Keith Putirka (California State University) Mel
©5,}&**+,-
Kuntz (USGS) *+,- )W( *+,-X)W
L‹˜t™.$ˆ©5,'Jz(8Ÿ
(*+,.(6 +* N@YZ ,/ /*+[&- )
F ($‰a30>%0S- Little City of
W('((* 0 - /*+,- 1*2
Rocks * 3.+/ Ma $%&{ž /* m Lt,J
\3?]T /* ,4^5_JL*`a3&*
ªŠQR%&G ¡C«…G>%0,- <3
6b7\3*+[&cdSefS@[&-
¬ ­$;,‹kŒ®…$;,Ž
-ῌ, ῍ῌ + ῎῏
¯ch0 F ({°23&&6*+,- =)
=8*EGHI5@Y9: Sun Valley $
W( ¯I®@9:% u$3,±)²
gh0?]T\3S[&- STOP+ i; +j 30tO‚‘$S[0,yW%&- ’“R
Lewiston <=k$UY3,ABCDEF
Z -*ῌ V6* 7”$p³´G •–
(
ƒ +/ ¶·šu¸†¹qM5xº».U9:@¼
493
z*F'8GH\$I&3
{
|{JK<PK.Q0LJK1I \7}
$< PK.Q/T~8H&<#Y
M'N\OIH?"P7
North Crater
Flow <QR'().)M& QS7"€T
8 z$ Uz!
$I
< V'97"‚ƒ8
7 „W$ |+…†+)M IX$‡ˆK
"7
$IY'<N‰Š)Š
)$8# <‹KFŒ"Zt1[
\]:}..$^7
‰Š)Š
)$_<PK.Q`&3PK.+LM
C ,
North Crater Flow ^_H.U9:;
Ža&\
.U9:;< 45&$I
PK. /0b ‡ˆK $‘]# ^_
FC ,G
7< ,*** ()A"<’ƒ#7 Little City of Rocks &“7
,* Arco +** km @ North Crater Cone d<H Inferno
!"
#$%
Cone c_d
??8< Craters of the Moon
&'()*+,-./012&3
456/
50WX”eH?"•f& –1;<sCb
0#7589:;<
=>7
?
—g˜H$I /0]hir
Inferno
< &<@A7B Great
Cone < Great Rift Zone C]9Z
Rift Zone CD$7
‰aQ™Ža&\
b
#$I<
Great Rift Zone < E F῍G
Green Dragon Flows " Devils Orchard Flow &9Z
H12 !I"77
#J$<% 3* km, &
7
$MišDj7'&< Mi
<% / km & ?KLM'<% +/*** (
šk›œl]9Z)+)M?"
8% ,*** ()ND$ Craters of the Moon
&\
Devils Orchard Flow <'().)Mž
Lava Field 3
#*+<% +,0** km, & ,/ OP
`a)M8#I SiO, mn< 0. wt.ῌ jH
K.Q 2 R,S-/T8#
KLM
?$I< Craters of the Moon Lava Field &@A
'<% ,*** ()D$ King’s Bowl
ž7
< % 0*** ()]9Z Big
Lava Field " Wapi Lava Field 3
.U&< Craters
Cinder Butte "Ÿ $¡ - km, o¡ + km, *8
of the Moon Lava Field +3,. (/V8 Craters
¢Z ,.* m PK.Q?"&\
?
of the Moon 50WX (STOP.) WX1<
PK.Q< UpD$PK.Q"<£_
1Y23Z45/V8[I ?.?
&@ ¤q&3
"& D$/0[7?"&\
" 6] 7^_H?"&\
D$<
Craters of the Moon 50WX ¥r&
3 Arco Arco <.)¦Š'd<
'8D$
HsT% +,*** s"72
tZ7§&3
8# Craters of the Moon Lava Field 8$
?§< +3/* (u¨&:}©v1D
< '().)M8`a)M"&b789Ac
w&§wvª«Zx,"my&3
%¬
@:WX;Td<Hefaghia=
&A.)¦Š5z­®¯,# ©vn{®¯°/
?jI7 >k ?@<lm[I
P7
/0nHAo<@B&3
efaghia
-ῌ. ῍ῌ - ῎῏
<lmpqhia3I C USGS
Arco 8 ,* 8YH" ±|D
DrsC st)upqEv;H?"&
$}2_N²~|e†
\
w North Crater Trail 5\#8 mx/
M"Ÿ ] 0 c%
?³< Arco Rift
0]y7^_
North Crater Flow < %
Zone &3
e†M"72€´< ‚
,*** ()]9ZPK.Q (North Crater Cone)
1]9ZcµzQkH ?³
c d
494
-
p n¸:1RS& Mike McCurry. ^
 $ r P Big Southern
Butte < Cedar Butte.
¼
.
'#_`d$ž
3J
a¹ Smith and Braile, +32. º$b»
R‘M’G - +“`$”1/J
Big South-
yHt3<•ngl47;:
ern Butte - !"#$%
&'
I + “ ` ,.+ Ma $ 3 Huckleberry Ridge
#()* + + ,-./
Tu# 3J ,/**km- Huckleberry Ridge •ngl
10* m 01*2$
3/–0* km I , “` +.- Ma $3
-** Ka $34 5$
Mesa Falls Tu# 3J ,2* km- Henry’s Fork
!"84
(Island Park) •ngl K— +0 km I - 9:1* ;;< =>*,-?,-@
“` *.0. Ma $3 Lava Creek Tu# 3J
) AB Big Southern Butte $%
&
+,*** km- R‘M•ngl (2/–./ km) Cedar Butte (STOP/) $C .** Ka 3
;J-˜L33MJ +22-
6$*7
DEF (G$ Cedar Butte 5
N$!l•q™4š3M ,** O
$H,:4 4IJ1*K L,-
$) '# ›œ , PQN$7;:
0
.WD LM$NCOP LMQRSTU!
V,-"W/J V#4X$1* ;%
B( .
AB Island Park $%
& Lower Mesa
&0'4()YZEF&;<4)
Falls < Upper Mesa Falls (STOP0) $ž*1 R‘
= [=*\]=4 &
MDŸ .* N¡#¢:1*£A~
^_M`=+1* ,a-b$cd*4ef
Bob Christiansen (USGS) RST)d4-
ghM ijklR m `noM QpqR,
<3MEF¢: ;¤¥ 014
-d ./01 '20'4()
3MU†J Huckleberry Ridge •nglV
4r-J s3t0'u1* ;01vM
•ngl¦r;<4) /-$ ;§I
w4Z<x,Z5y6$t
7./ , “`˜L/J Henry’s Fork •ng
Dz8$Y:1/J{9:;4
l¦CW¨d0'1* Henry’s ©ª
C |}~-b$<*{9€&;<4)
$ «1XY&()RfM¬lR
=>$t‚44 ƒ?@„…/J
(Mesa Falls Tu#) ./4Z*1* ƒ#0$I
1A00'4-†$d:014C B‡,-
- “`$3 Lava Creek Tu# @) ­
Cˆ$‰\SR!4Š+,r-J SR!':
ª$ R‘M•ngl¡ *.,Ma $
1* <D‹ , ŒE4
3XY&() Gerrit Basalt 4r-J
;J Cedar Butte wwFŽC4 , ;0'
;%ŽR‘M®!¯°±C
1*K Cedar Butte rV R
AB²¢ ,* ³[´$ 0* km \]µV8¶·
‘M$H,:
(West Yellowstone) ,-¯°A$:
Œ +/ W…?A©‹(¶·¸¹º»Ž¼
495
-ῌ/ ῍ῌ . ῎῏
/ Madison Junction
Tu#
89& Lava Creek
\] (STOP2) EQR7,' H \] +3/3 LD7,@‰Š‹A 1./
^NoG2,\
$ \] BiC_€7,Œ`EaIo
QR$J,' \] € b7cdefLg7
M&' Žb$'f2&`‘’2“
h` ”•CoM,' ' `‘’2i
jdCoM& <k–12—“h`
CoMCM' \] 7.Kb7MCM˜™l
mEC šn57,›$%&œ>o
žp$J,'
4 /
#E6J7X& Old Faithful Geyser.
qr2,Ÿs
(STOP3) $ _ 3.m
Artist Point
Lower Falls IŸst !4 0#
E5&HI$J,' Ÿs ¡?¢£{Q¤ !
.2* Ka# 57,
2,32* km- !" # $%&' ()*
+%, -
,,*** m
-$%&' +21, Canyon Flow Eu¥v9&HI$
{Q12 -* km V,o-1
.** m
y@ w
./ 012 +312 .34
txK' H @ yyQEPˆ#Iz<l
12,./ $%&' /567,
{Œ|˜™EEW|7,,q$% 89& Upper Geyser Basin (STOP1)
IMz3T
$%&' $ :;
Upper Geyser Basin ¦§
< =>? @(
}~ICoM&' u
AB(ACD + !E"F&#G$E5&HI$J&
z'%&€#
%KH L&'7M&' NK()12
u ©©(ªuE«}7¬)©­„l2&' ®
,*+,E + -9&HI$ OIPD. #G$E
ƒl25&¯lu­_uIxl7…
QR9&HIS/$%&' *+, 0T%&.$
j†l2&'
+ 123C:;IUV2& Old Faithful Geyser !4 /#
+ W
5$
. ! l
#E
0* m 6J7X&'
‚ƒE¨lI7 •n
Norris Geyser Basin (STOP+*) ‡8
7 '$/\ˆ7K#°‰±
H :;YZ +** : OIPD+ :[ !
3*
Ho,L$%&' ,q # =U/\-K
# $6J57
ˆ7M:;qiI{Q12M&' H NzC
%&' :;
58: -1CD\9WO]+$
5:8^ _`abc
d;CDe<12M&' H = >=9
1* m f$
-²³Š´2M,' Steamboat Geyser .
/ :;$ 2 + U‹U µx$ 5%
59& Giant Geyser EgNK5&HI$
J,' *+, h%& Morning Glory Pool - ? @
2,A7M=>?$%&' BiC
@ >?Cj9& H2 @OIPDkl
mnNop512M&' -= =$DE
FG$JCM,qr H ffs& I=C
&IJKIklmnLD9&' pH \tuEM
NFvwO xP@ J 'O xy@ J
LD9&' H Nz7BiC@ >?{Q1
2&' Morning Glory Pool
R |Fading Glory} IMz
~S%o,' T =UI€N'V HP@ y@W‚7,XNEYZ7M&' H2 Q
ƒ„>?…CDE[X†P$= 5TE‡M
ˆ,q$%&'
4 0
ŸsI Lower Falls.
‡ ¨
496
¼
XY*Z€K Z[[*\‚ ]
^S Chico ƒ ]^„…_:
c`ab5
-ῌ0 / \I ]^ Chico YcS=†
‡8]ƒ dRˆ ^]‰Šef$ Butte Berkeley Pit (STOP+-) 345ghi‹Œj
k*r Butte  +20. ElŒGX
g Ž  ‘{m*`n+’
\ojp5$ Berkeley Pit d,..
km“+.1 km, q //* me 5Œj + q r”
\A•sgŒj +3// E +32, EXtŒ
; 1
Terrace Mountain 21a8b]:c
5 \u–S*vwt‹5 @
tx2—y2*Nzhi‹{ |tŒ
.* +,* m / +. ˜ t *#E Œ} ~AŽ™€ (12 Ma)
š^]›Š/2 dœ898at&=e šA
! "
ž‚ (0, Ma,
#$ %&'()
S Ÿ 5 ƒA I-type ƒAS
*+,-
./01/2345
Œj¡Q¢J>
J*†]F
6789%&'5
Obsidian Cli# (STOP++) :;$
.2 Ma) D5AgŒ}
£#¤„$ …¥@†]F*Wo
W¦ `/JA† §$–S¨5)
*< : - =>8?
hi‹*k‡D5 ‡©
@ *.+2 Ma !A"ABCD
E,D . m ˆ$ Jª2 (pH ,./)
5 :; +* m *#E $FGH
g '«¬yw Ž ‰Š ­a92{m
%I8&H?5 J$%&'()*
`/"®$o 34.‹S mŒ $ : K+, !A"AL-MD
J£#¤‹CŽ(®5$
5NE5$ MO;$"A :D5P5 Obsidian
. Cliff : SiO, Q./ 11 wt.ῌ *#E Q
/ I,$O$S/u¯8=28]
./ + wt.ῌ RJS MO SiO, Q./T
‘’Œ+’.“r,mC*r+
Q./0$UVU 1234T
AK.°±S *(Y+
5-W6C7X$Y8S
OE\”$­8=*²³J´9•
Z[9\@<U]^=_`H2=F
–|—µ˜™X+ ¶š•·›œ ž
&]V= Terrace Mountain (STOP+,) 21a8b
¸Ÿ ¹º¡¢q$£¤­»]2*$
]:c d; 1e *< /6]
)$ L*¥Ÿ¦§¤X+
*Q()< JfA*"Ygh=
>
5?i.=*@+j
f* k:lA:c*B
$ mCD 2*** EFGX HI ,t R
fnh5o + J,pqD
KC+LMS
Z[9rmCRs a/t] u9v w8
= xv2yz%{N|OPQ*
Z[9*}QRa/t]~5ST*U
a=VW+$O44S Z[9
Smith, R. B. and Braile, L. W. (+32.) Crustal structure
and evolution of an explosive silicic volcanic system at
Yellowstone National Park. In Explosive Volcanism : Inception, Evolution, and Hazards, National Academy
Press, 30῍+++.
Smith, R. B. and Siegel, L. (,***) The geologic story of
Yellowstone and Grand Teton National Parks. In
Windows into the Earth, Oxford University Press, New
York, ,.1 pp.
Fly UP