ridge
加入词篮Alps
mount
the Himalayas
plateau
highlander
highland
upland
inland
outback
plain
champaign
vast
prairie
lowland
lowlander
basin
lake
lakeside
pond
pool
stream
brook
creek
loch
ripple
marsh
marshland
swamp
wetland
river
river bed
riverfront
riverside
rivulet
the Yellow River
the Yangtze River
lithosphere
mantle
deposit
deposition
stratum
stratigraphy
layer
pile
heap
fill
zone
equator
latitude
longitude
polar
horizon
skyline
altitude
sediment
sedimentary layers
sedimentation
rock
tough
stiff
quartz
marble
granite
basalt
petrology
limestone
mineral
mineralogist
mineralogy
ore
miner
mineworker
mining
fossil
fossilization
coal
coalface
coalfield
coal mine
coal miner
coal tar
tar
colliery
iceberg
glacier
ice age
volcano
volcanic ash
active volcano
crater
eruption
magma
lava
seismograph
seismology
seismologist
seismic belt
earthquake
tsunami
