Earth_Magazine_October_2017

EARTH

FEATURES

438-*(4:*78LIHIWMKRSJ3&&ƶWȶȉȶȉVSZIVPEVKIP]HYTPMGEXIWXLEXSJMXWTVIHIGIWWSV(YVMSWMX]7IEHQSVIEFSYXXLIQER]QMWWMSRWXLEX[MPPLIEH

XS2EVWMRȶȉȶȉSRTEKIȶȰ(VIHMX3&&/51(EPXIGL

4GXSFIVȶȉȦȮ`ZSPȰȶRSȦȉ`[[[IEVXLQEKE^MRISVK

ȴȁ

ȶȰ

VOICES

ȁ(422*38
5VSZMHMRK7IWSYVGIWJSV+YXYVI,IRIVEXMSRWƴ8IGLRMGEPERH-YQER(LEPPIRKIW
-S[[MPP[IQIIXXLIVIWSYVGIHIQERHWSJXLIJYXYVI$`/SLR+-8LSQTWSR

Ȧȉ(42238
8LI&RXLVSTSGIRI+SVIKSRISV5VIQEXYVI(SRGPYWMSR$
&GORS[PIHKMRKXLIMQTEGXWSJLYQERWSREVXLF]IWXEFPMWLMRKERI[KISPSKMGITSGLLEWWIVMSYWSJXIR
SZIVPSSOIHIXLMGEPMQTPMGEXMSRW`(LVMWXMRI/(YSQS

 Ȱȏ,*414,.((41923
&2EWSGLMWX-MOIW8LVSYKLXLI-IEXLIV
&LMOIMRXLIGSXXMWL-MKLPERHWGERFIEHIPMKLXJYPWSNSYVRSVEQMWIVEFPITPSHMRXLIVEMR`;EVH(LIW[SVXL

ȶȰ |2&7(1&4+ȶȉȶȉ

&)MZIVWI,VSYTSJ2MWWMSRW

8EOIW&MQEXXLI7IH5PERIX

&WQER]EWWM\QMWWMSRWXS

2EVWQMKLXPEYRGLMRWYQQIV

ȶȉȶȉVITVIWIRXMRKEKVS[MRK

ERHMRGVIEWMRKP]HMZIVWI

MRXIVIWXMRMRXIVTPERIXEV]

WTEGII\TPSVEXMSR

`8MQSXL]4PIWSR

ȴȁ| TRAVELS IN GEOLOGY:

(SRIWERH(VEXIVWMR

+PEKWXEJJ&VM^SRE

+I[TPEGIWMRXLIGSYRXV]

I\LMFMXEWQER]X]TIW

SJZSPGERMGJIEXYVIWƴ

MRGPYHMRKNEKKIHPEZEJPS[W

GVYQFP]GMRHIVGSRIWERH

XLIVIQRERXWSJEXS[IVMRK

WXVEXSZSPGERSƴMREWWQEPP

EREVIEEWRSVXLIVR&VM^SREƶW

ER+VERGMWGS:SPGERMG+MIPH

`8IVVM(SSOERH1SR&FFSXX