Geology - A
Å
a-
a
a axis
a direction
A horizon
aa
aa channel
aa lava
a-axis
ab
A.B. Meco-Moore
abandoned mine
abandoned workings
abandonment
abaxial
Abbe jar
Abbe refractometer
Abbe theory
Abbe tube mill
ABC system
Abel's reagent
abernathyite
aberration
abime
ablation
ablation area
ablation breccia
ablation cone
ablation factor
ablation forms
ablation funnel
ablation moraine
ablatograph
Abney level
abnormal anticlinorium
abnormal place
abnormal synclinorium
aboral cavity
abortive
ab-plane
abrade
abraded
abraser
abrasion
abrasion hardness
abrasion index
abrasive
abrasive blasting respirator
abrasive formation
abrasive ground
abrasive hardness test
abraum salts
abraumsalze
abriachanite
absolute
absolute age
absolute atmosphere
absolute bulk strength
absolute chronology
absolute daily range
absolute humidity
absolute isohypse
absolute ownership
absolute permeability
absolute potential
absolute pressure
absolute roof
absolute scale
absolute temperature
absolute time
absolute viscosity
absolute weight strength
absolute zero
absorbed water
absorbent formation
absorbent ground
absorbents
absorber
absorptiometer
absorption
absorption hygrometer
absorption loss
absorption rate
absorption spectra
absorption spectrum
absorption tower
abundant vitrain
abutment
abutment load
abutment pillars
abysmal
abysmal sea
abyss
abyssal
abyssal deposit
abyssal injection
abyssal plain
abyssal realm
abyssal theory
abyssal zone
abyssobenthic
abyssolith
abyssopelagic
acanthite
accelerated weathering test
accelerator
accelerometer
accented contour
acceptor
access road
accessory
accessory element
accessory mineral
accessory plate
accidental inclusion
accordion roller conveyor
accretion vein
accretionary wedge
accumulation
accumulative rock
accumulator
accumulator conveyor
accuracy
acetamide
acetic acid amine
acetylene
acetylene lamp
acetylene tetrabromide
achavalite
Acheson graphite
Acheson process
achirite
achroite
achromatic
acicular
acicular bismuth
acicular powder
aciculite
acid
acid Bessemer converter
acid bottom and lining
acid clay
acid cure
acid drainage
acid electric furnace
acid embrittlement
acid flux
acid leach
acid lining
acid mine drainage
acid mine water
acid neutralizers
acid open-hearth steel
acid ore
acid process
acid rain
acid refractory material
acid refractory product
acid regenerator
acid rock drainage
acid slag
acid sludge
acid soil
acid steel
acid strength
acid test
acid water
acid-dip survey
acid-dip test
acid-etch tube
acid-etch vial
acid-forming materials
acidic
acidic lava
acidization
acidize
acidizing
acid-recovery operator
aciform
aciniform
acinose
acinote
acinous
aclinal
aclinic
aclinic line
acmite
acopolado
acoustic
acoustic attenuation log
acoustic dispersion
acoustic impedance
acoustic interferometer
acoustic log
acoustic radiometer
acoustic resistance
acoustic scattering
acoustic sounding
acoustic theodolite
acoustic wave
acoustical well logging
acoustic-radiation pressure
acoustics
acoustic-strain gage
acquired lands
acre
acreage rent
acre-foot
acre-inch
acre-yield
actetic acid amine
actinide
actinide element
actinolite
actinote
activated alumina
activated carbon
activated charcoal
activated clay
activated coal plow
activated plow
activating agent
activation
activation analysis
activator
active agent
active earth pressure
active entry
active fault
active layer
active mining area
active workings
activity
actual age
actual breaking strength
actual horsepower
actual performance curve
actuated roller switch
acute bisectrix
adamantine
adamantine luster
adamellite
adamic earth
adamite
adamsite
adiabatic compression
adiabatic efficiency
adiabatic expansion
adiabatic rate
adiabatic temperature
adiabatic temperature change
adinole
adipite
adipocerite
adipocire
adit
adit end
adit level
adjacent sea
adjustment of error
adjutage
admission
admittance
adobe
adobe charge
adobe flat
adobe shot
adsorption
adsorption analysis
adular
adularescence
adularia
adularia moonstone
advance
advance development
advance gate
advance overburden
advance per round
advance stope
advance stripping
advance wave
advance working
advanced gallery
advanced materials
advancing
advancing longwall
adventurine
adverse
adverse claim
adverse intent
advertised out
AED process
aedelforsite
aedelite
aegirine
aegirine-augite
aegirite
aenigmatite
aeolian
Aeonite
aerate
aeration
aeration zone
aerator
aerial
aerial cableway
aerial mapping
aerial photograph
aerial photomosaic
aerial railroad
aerial ropeway
aerial spud
aerial survey
aerial tramway
aerobe
aerobic
aeroclay
aerodynamic diameter
aerodynamic fan
aerodynamic instability
aerodynamical efficiency
aeroembolism
aerofall mill
aerofloc
aerofoil-vane fan
aerohydrous
aeroides
aeromagnetic prospecting
aerometer
aerosite
aerosol
aerugite
aerugo
aeschynite
aethiops mineral
aetite
affinity
A-frame
A-frame headgear
African emerald
afterblast
afterblow
afterbreak
afterburst
aftercooler
afterdamp
aftergases
aftershock
aftersliding
afwillite
agalite
agalmatolite
agardite
agaric mineral
agate
agate jasper
agate opal
agatized wood
age
age ratio
Agecroft device
agent
agglomerate belt flotation
agglomerate screening
agglomerating value
agglomeration
agglutinate
agglutinating power
agglutinating value
agglutinating-value test
agglutination
aggradation
aggregate
aging
Agitair flotation machine
agitation dredging
agitation ratio
agitator
aglaite
agmatite
agnesite
agonic line
agreement
agricolite
agricultural geology
agricultural lime
agrite
agrogeology
aguilarite
ahlfeldite
A-horizon
aikinite
aimafibrite
AIME
air
air barrage
air bell
air belt
air block
air box
air breakers
air brick
air bridge
air bubble
air chamber
air change
air channels
air circulation
air classification
air classifier
air cleaning
air compartment
air conditioning
air course
air coursing
air creep
air crossing
air current
air cushion
air cyclone
air decking
air dome
air door
air drain
air drift
air drill
air duct
air elutriation
air elutriator
air endway
air flush
air flushing
air furnace
air horsepower
air hp
air intake
air jig
air lancing
air leakage
air leg
air level
air lift
air lock
air mat
air mover
air photograph
air pit
air pressure
air propeller
air pump
air quantity
air ramming
air receiver
air regulator
air requirements
air rig
air rod puller
air rotary drilling
air seal
air separation
air separator
air set
air shaft
air shooting
air shot
air shrinkage
air slit
air slug
air sollar
air split
air stack
air stain
air starter
air streak
air survey
air swivel
air table
air transport
air trunk
air tub
air turbolamp
air valve
air velocity
air vessel
air volume
air washer
air wave
airafibrite
air-avid surface
airblast
airblasting
airborne electromagnetic prospecting
airborne magnetic prospecting
airborne magnetometer
air-conditioning process
air-cooled blast-furnace slag
Airdox
air-dried
air-dried basis
air-dry
air-float table
airflow
airflow meter
airflow-equalizing device
airfoil fan
airhole
airing
air-leg support
air-lift dredge
airlift sampler
air-line lubricator
airline respirator
airman
air-operated winch
airplane-strand wire rope
air-power-operated mine door
air-pressure drop
air-purifying respirator
air-reduction process
air-sand process
air-slaked
air-slaking
air-space ratio
air-sparged hydrocyclone
air-stowing machine
air-swept ball mill
air-swept mill
air-track drill
airveyor
air-void ratio
airway
Airy hypothesis
Ajax
ajkaite
ajutage
akaganeite
akhtenskite
Akins' classifier
akrochordite
aksaite
alabandite
alabaster
aladzha
alamosite
alaskite
albert shale
albertite
albite
albite porphyrite
albite-epidote-amphibolite facies
albitite
albitization
albitophyre
albond
alchemy
alcohol
alexandrine sapphire
alexandrite effect
alexandritelike tourmaline
alexeyevite
alga sapropel
algae
algal
algal coal
algal limestone
algal reef
algal stromatolite
algarite
Algerian onyx
alginate
algite
algodonite
Algoman orogeny
alidade
alien filling
align
alignment
alinement clamp
aliphatic
alipite
alisonite
Aliva concrete sprayer
alive
alkali
alkali bentonite
alkali earth
alkali feldspar
alkali flat
alkali garnet
alkali granite
alkali metal
alkali rocks
alkali soil
alkali subbentonite
alkalic
alkalic feldspar
alkali-lime series
alkalimeter
alkaline
alkaline metal
alkaline-earth bentonite
alkaline-earth metal
alkalinity
alkane
alkene
alkinite
alkyne
allactite
allagite
allanite
allargentum
allcharite
alleghanyite
allemontite
Allen cone
Allen-O'Hara furnace
allevardite
alley stone
alliaceous
alligator
all-mine pig
allochem
allochemical
allochroite
allochromatic
allochromatic mineral
allochthon
allochthonous
allochthonous coal
allochthonous peat
alloclasite
alloclastic breccia
allogenic
allogonite
allomeric
allomorph
allomorphism
allomorphite
allomorphous
allopalladium
allophane
allophanite
allophanoids
allothimorph
allotriomorphic
allotriomorphic-granular
allotropic
allotropism
allotropy
allowable bearing value
allowable pile-bearing load
allowable stress
alloy
alloy sludger
alloy system
alloyage
alluaudite
alluvia
alluvial
alluvial clay
alluvial cone
alluvial deposit
alluvial fan
alluvial flat
alluvial mining
alluvial ore deposit
alluvial plain
alluvial slope
alluvial tin
alluvial values
alluviation
alluvion
alluvium
almagra
almandine
almandine ruby
almandite
almeria ore
almond furnace
almond stone
alnoite
Aloxite
alpha alumina
alpha celsian
alpha chalcocite
alpha decay
alpha hyblite
alpha mercuric sulfide
alpha particle
alpha quartz
alpha zinc sulfide
alpine
Alpine diamond
Alpine glacier
alquifou
alshedite
alstonite
altaite
alteration
altered mineral
altered rock
altered stone
alternate pillar and stope
alternate polarity
alternating-current ampere
alto
alum
alum cake
alum earth
alum rock
alum salt
alum schist
alum shale
alum slate
alumina
alumina trihydrate
aluminate
aluminite
aluminosilicate refractory
aluminous abrasive
aluminous ore
aluminum
aluminum detonator
aluminum silicates
alumite
alumocalcite
alumogel
alunite
alunitization
alunogen
alvanite
alveoli
alvite
amalgam
amalgam barrel
amalgam pan
amalgam plate
amalgam retort
amalgam treatment
amalgamate
amalgamated claims
amalgamating barrel
amalgamating table
amalgamation
amalgamation process
amalgamator
amang
amarantite
amargosite
amatrice
amause
amazonite
amazonstone
amber
amber mica
amber opal
Amberine
amberite
amberoid
ambient
ambrosine
amenability
American
American forge
American jade
American ruby
American system
American Table of Distances
American-Belgian furnace
amesite
amethyst
amethyst point
amethystine
amethystine quartz
amianthinite
amianthus
amiantoid
amigo
aminoffite
ammine
ammiolite
ammite
ammonal
ammonia
ammonia dynamite
ammonia gelatin
ammonia gelatin dynamite
ammonia niter
ammonia stillman
ammoniojarosite
ammonium chloride
ammonium hydroxide
ammonium nitrate
ammonium nitrate gelignites
amoibite
amorphous
amorphous coal
amorphous graphite
amorphous metal
amorphous mineral
amorphous peat
amorphous phosphorus
amosite
ampangabeite
ampelite
ampelitis
ampere
ampere volt
ampere-hour
amphibole
amphibole group
amphibole-magnetite rock
amphibolide
amphibolite
amphibolite facies
amphibololite
amphigene
amphoteric
amygdale
amygdaloid
amygdaloidal
amygdaloidal rock
amygdule
amyl alcohol
amyl xanthate
Anaconda method
anaerobic
analcime
analcimite
analcimization
analcitization
analog computer
analogous
analytic group
analytical chemistry
analyzer
anamigmatization
anamorphic zone
anamorphism
anastomosing
anatase
anatectic
anatexis
anauxite
Anbauhobel
anchaduar
anchor bolt
anchor charge
anchor jack
anchor prop
anchorage
ancylite
andalusite
andersonite
Anderton shearer loader
andesine
andesinite
andesite
andesite line
andorite
andradite
andre
Andreasen pipette
Andrews' elutriator
andrewsite
anemoclastic
anemogram
anemograph
anemolite
anemometer
aneroid barograph
aneroid barometer
ANFO
angelellite
angle beam
angle brace
angle drilling
angle hole
angle level
angle of attack
angle of bite
angle of dip
angle of draw
angle of external friction
angle of extinction
angle of friction
angle of inclination
angle of nip
angle of obliquity
angle of polarization
angle of pull
angle of reflection
angle of repose
angle of rest
angle of shear
angle of slide
angle of swing
angle to the right
angle trough
angle-cut
angledozer
anglesite
angling
angling dozer
angstrom
angular
angular cutter
angular momentum
angular unconformity
angularity test
anhedral
anhydride
anhydrite
anhydrock
anhydrous
anhydrous ammonia
anidiomorphic
aniline point
anilite
animikite
anion
anion exchange capacity
anionic collector
anionic current
anionic detergent
anionic flotation
anisodesmic
anisometric
anisotropic
anisotropic fabric
anisotropy
ankerite
annabergite
annealed wire rope
annealing
annealing color
annealing oven
annerodite
annite
annivite
annual labor
annual layer
annual value
annular bearing
annular kiln
annular-drainage pattern
anode
anode compartment
anode copper
anode effect
anode furnace
anode metals
anode mud
anode scrap
anode slime
anodic zone
anomaly
anorthic
anorthite
anorthoclase
anorthosite
anorthositization
anoxia
Antarctic bottom water
Antarctic intermediate water
anthill
anthoinite
anthonyite
anthophyllite
anthra
anthracene
anthracene oil
anthracite
anthracite coal sizes
anthracite duff
anthracite fines
anthracite silt
anthracite-coal-base carbon refractory
anthracitic
anthracology
anthracometer
anthraconite
anthracosilicosis
anthracosis
anthrafilt
anthrafine
anthrasilicosis
anthraxolite
anthraxylon
anthraxylous coal
antibreakage device
anticlinal
anticlinal axis
anticlinal bend
anticlinal mountain
anticlinal valley
anticline
anticlinorium
antiferromagnetic
antiferromagnetism
antiform
antifriction bearing
antigorite
antilogous
antimagmatist
antimonate
antimonial arsenic
antimonial copper
antimonial red silver
antimonial silver
antimonite
antimonpearceite
antimony
antimony blende
antimony crudum
antimony glance
antimony ocher
antimony regulus
antimony star
antimony trioxide
antinode
antipathy of minerals
antiperthite
antistatic
antistress mineral
antithetic fault
antithetic shear
antitropal ventilation
antiturbidity overflow system
antlerite
AN-TNT slurry
antofagasite
antozonite
anvil
anvil block
anvil jaw
anvil stone
anvil vise
apartalite
apatelite
apatite
apex
apex law
aphanesite
aphanite
aphanitic
aphanitic texture
aphanophyre
aphothonite
aphrite
aphrodite
aphyric
aplanachromatic lens
aplanatic lens
aplite
aplitic
aplogranite
Apocal
Apold-Fleissner process
apomagmatic
apophyllite
apophysis
aporhyolite
Appalachian coalfield
Appalachian orogeny
Appalachian revolution
apparent cohesion
apparent density
apparent dip
apparent movement of a fault
apparent plunge
apparent porosity
apparent resistivity
apparent specific gravity
apparent superposition
apparent velocity
apparent volume
apparent width
appliances of transportation
Appolt oven
appraisal
approach distance
appropriation
approved permissible flame safety lamp
approximate original contour
Apricotine
apron
apron conveyor
apron feed
apron feeder
apron plate
apron rope
apron wall
apyrous
AQ
aqua ammonia
aqua regia
aquarium test
aqueous
aqueous fusion
aqueous liquor
aquiclude
aquifer
aquifer test
aquifuge
aquitard
Aragon spar
aragonite
aragonite sand
aramayoite
arbitrage
arborescent
arc cutter
arc furnace
arc shear machine
arc shooting
arc welding
arcanite
arch
arch blocks
arch forms
arch girder
arch rib
arch set
arch structure
Archean
arched
Archeozoic
Archimedes' principle
arching
arching action
arching to a weakness
arcose
Arctic suite
arcwall machine
Ardeer double-cartridge test
ardennite
area of airway
area of influence of a well
area of settlement
areal geology
areal map
areal pattern
arenaceous
areng
arenite
Arents tap
arête
arfvedsonite
Argall furnace
Argall tubular furnace
argental mercury
argentate
argentation
argentiferous
argentiferous galena
argentiferous lead
argentine
argentite
argentojarosite
argentopyrite
argil
argillaceous
argillaceous hematite
argillaceous limestone
argillaceous ore
argillaceous rock
argillation
argillic
argillite
argillization
argon
argulite
argyrite
argyrodite
argyropyrite
argyrose
argyrythrose
aridity index
arite
arithmetic-mean particle diameter
Arizona ruby
arizonite
Arkansas diamond
Arkansas stone
arkansite
arkose
arkose quartzite
arkosic
arkosic sandstone
arkosite
arm
arm conveyor
armangite
armenite
armor
armored apron
armored cable
armored flexible conveyor
armored relict
Armstrong air breaker
arnimite
arochlors
aromatic compound
aromatic hydrocarbon
aromatite
arquerite
arrastra
arrastre
arrested decay
arrester
arrival dealings
arrojadite
arrow
arroyo
arsenargentite
arsenate
arsenic
arsenic bloom
arsenic trioxide
arsenical antimony
arsenical nickel
arsenical pyrite
arsenicite
arsenious oxide
arsenite
arsenobismite
arsenoclasite
arsenolamprite
arsenolite
arsenopyrite
arsenosulvanite
arsenpolybasite
arsenuranocircite
arsenuranylite
arterial road
artesian
artesian aquifer
artesian basin
artesian discharge
artesian leakage
artesian spring
artesian water
artesian well
arthurite
articulite
artificial aging
artificial brine
artificial horizon
artificial island
artificial liquid fuel
artificial refractories
artinite
asbestiform
asbestine
asbestos
asbestos minerals
asbestos yarn
asbestosis
asbestus
asbolan
asbolane
asbolite
ascension theory
ascensional ventilation
ascharite
aschisite
aschistic
aseismic ridge
ash
ash curve
ash drawers
ash error
ash fusibility
ash yield
ashcroftine
ash-fusion temperature
ashlar
ash-specific gravity curve
ashstone
asparagolite
asparagus stone
aspect
asperolite
asphalt
asphalt rock
asphalt stone
asphaltic
asphaltic ore
asphaltic rock
asphaltite
asphyxiate
aspirating
aspirator
assay
assay balance
assay foot
assay grade
assay inch
assay office
assay plan
assay plan factor
assay split
assay ton
assay value
assay walls
assayer
assembled stone
assembly rod
assessment
assessment drilling
assessment labor
assessment work
asset
assigned protection factor
assimilation
assistant mine foreman
Assmann psychrometer
association
association placer location
assured mineral
astatic
astatic gravimeter
astatic pendulum
astatization
asteria
asteriated
asteriated quartz
asteriated topaz
asterism
asteroids
asthenolith
asthenosphere
ASTM coal classification
astochite
astrakanite
astridite
astringent
astrogeology
astrophyllite
asymmetric class
asymmetric fold
asymmetric unit
asymmetrical
asymmetrical vein
at grade
atacamite
ataxic
atelestite
Atkinson
Atkinson's friction coefficient
Atlantic Ridge
Atlantic suite
Atlas ore
Atlas spar
atmosphere
atmosphere-supplying respirator
atmospheric condenser
atoll
atoll texture
atom
atomic charge
atomic distance
atomic energy
atomic mass
atomic moisture meter
atomic number
atomic plane
atomic reactor
atomic scattering factor
atomic size
atomic susceptibility
atomic volume
atomic weight
atomization
atomized metal powder
atomizer
atopite
attached ground water
attack rate
attapulgite
attendance signaling system
attenuation
Atterberg limits
Atterberg scale
Atterberg test
attitude
attrital coal
attrition
attrition mill
attritious wear
attritus
audiofrequency
augelite
augen
augen gneiss
augen schist
augen structure
auger
auger bits
auger boring
auger head
auger hole
auger mining
augite
augite bronzite
augite diorite
augite syenite
auralite
aureole
auri-argentiferous
aurichalcite
auricupride
auriferous
auriferous pyrite
aurobismuthinite
aurosmirid
aurostibite
aurous
austempering
austenite
austenitic stainless steel
austenitizing
austinite
Australian bentonite
Australian cinnabar
authigene
authigenesis
authigenetic
authigenic
authigenic mineral
authorized fuels
authorized person
autochthon
autochthonous
autochthonous coal
autochthonous peat
autochthony
autoclastic
autogenous
autogenous grinding
autogenous roasting
autohydration
autoinjection
autointrusion
autolith
automatic ash analysis
automatic belt takeup
automatic clip
automatic clutch
automatic coupling
automatic cyclic winding
automatic dam
automatic door
automatic doors
automatic feed
automatic feed sampler
automatic heat-treating machine
automatic pump control
automatic pumping
automatic reclosing relays
automatic recorder
automatic sampler
automatic sampling
automatic sprinkler
automatic winding
autometamorphism
autometasomatism
automolite
automorphic
automorphic-granular
autopneumatolysis
autospray
autostoper
autotransformer
autotroph
autrometer
autunite
auxiliary
auxiliary anode
auxiliary cylinder
auxiliary fault
auxiliary mineral
auxiliary operations
auxiliary ventilation
available alumina
available energy
available lime
available power