3 Underground Storage Tank (UST) Underground Storage Tank (UST): An underground storage tank (UST) is a confined […] Underground Storage Tank (UST) Recently updated !May 16, 2022 in Glossary by Geo Forward (updated on May 19, 2022)
Lumber Moisture Content Grade Lumber moisture grading is a manufacturer-provided value of moisture content, for […] Lumber Moisture Content GradeNovember 15, 2021 in Glossary by Geo Forward
U-Shaped Kitchen U-Shaped Kitchen: A U-shaped kitchen, or a horseshoe kitchen, is a general kitchen […] U-Shaped KitchenNovember 15, 2021 in Glossary by Geo Forward
Gravel Blanket in Methane Mitigation A gravel blanket is a 2-inch or 4-inch thick layer […] Gravel BlanketNovember 11, 2021 in Glossary by Karen Pacle (updated on November 11, 2021)
Mechanical Extraction System Mechanical Extraction System: Per the Los Angeles Department of Building and Safety […] Mechanical Extraction SystemSeptember 9, 2021 in Glossary by Karen Pacle
Trench Dam Trench Dam: Per the Los Angeles Department of Building and Safety (LADBS) Methane […] Trench DamSeptember 1, 2021 in Glossary by Karen Pacle
3 Active Methane Mitigation Active Methane Mitigation: Active systems refer to the mechanical and electrical components […] Active Methane Mitigation SystemAugust 9, 2021 in Glossary by Geo Forward (updated on August 9, 2021)
1 Passive Methane Mitigation Passive Methane Mitigation: Passive systems refer to the non-mechanical and non-electric components […] Passive Methane MitigationAugust 9, 2021 in Glossary by Geo Forward (updated on August 9, 2021)
2 Control Panel in a Methane Mitigation System Control Panel of a Methane Mitigation System: A […] Control Panel for Methane Mitigation SystemAugust 6, 2021 in Glossary by Geo Forward
2 Methane Alarm System Methane Alarm System: As per the Los Angeles Department of Building and […] Methane Alarm SystemAugust 6, 2021 in Glossary by Karen Pacle (updated on September 1, 2021)
Unobstructed Opening Definition in Methane Mitigation Unobstructed Opening: Per the Los Angeles Department of Building […] Unobstructed Opening in Methane MitigationAugust 5, 2021 in Glossary by Karen Pacle
Single Station Methane Gas Detector Single Station Methane Gas Detector: As per the Los Angeles […] Single Station Methane Gas DetectorAugust 5, 2021 in Glossary by Karen Pacle (updated on August 5, 2021)
Plat Map Definition Plat Map: A plat map provides the metes and bounds of a […] Plat Map DefinitionJuly 29, 2021 in Glossary by Geo Forward (updated on July 29, 2021)
1 De-Watering System in Methane Mitigation De-Watering: In accordance with the Los Angeles Department of Building […] De-watering SystemJuly 28, 2021 in Glossary by Karen Pacle (updated on July 28, 2021)
4 Impervious Membrane in Methane Mitigation Impervious Membrane: In accordance with the Los Angeles Department of […] Impervious MembraneJuly 27, 2021 in Glossary by Karen Pacle (updated on July 28, 2021)
4 Perforated Horizontal Pipe in Methane Mitigation Perforated Horizontal Pipe: As per the Los Angeles Department […] Perforated Horizontal PipeJuly 27, 2021 in Glossary by Karen Pacle (updated on July 27, 2021)
2 Vent Riser in Methane Mitigation Vent Riser in Methane Mitigation: As per the Los Angeles […] Vent Riser in Methane MitigationJuly 27, 2021 in Glossary by Karen Pacle (updated on July 27, 2021)
2 Design Methane Pressure (Soil Formation Pressure) Design Methane Pressure or Soil Formation Pressure: As per […] Design Methane Pressure (Soil Formation Pressure)July 21, 2021 in Glossary by Geo Forward (updated on July 21, 2021)
2 Design Methane Concentration Design Methane Concentration: In accordance with the Los Angeles Department of Building […] Design Methane ConcentrationJuly 21, 2021 in Glossary by Geo Forward
14 Methane Soil Gas Methane Soil Gas: In geology, methane soil gas refers to the confinement […] Methane Soil GasJuly 13, 2021 in Glossary by Geo Forward (updated on July 13, 2021)
1 Hydrogen Sulfide Soil Gas (In Natural Gas) Hydrogen Sulfide: Hydrogen sulfide (H2S) soil gas geologically […] Hydrogen Sulfide Soil GasJuly 13, 2021 in Glossary by Geo Forward (updated on July 13, 2021)
1 Thermosphere Thermosphere: The thermosphere of a terrestrial planet is the fourth and final member of […] ThermosphereJuly 7, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
1 Mesosphere Mesosphere: The mesosphere of a terrestrial planet is the third member of the atmosphere. […] MesosphereJuly 7, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
3 Stratosphere Stratosphere: The stratosphere of a terrestrial planet is the second-lowest member of the atmosphere. […] StratosphereJuly 7, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
1 Troposphere Troposphere: The troposphere of a terrestrial planet is the lowest member of the atmosphere. […] TroposphereJuly 7, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
6 Atmosphere Atmosphere: The atmosphere of a terrestrial planet is an outermost series of layers that […] AtmosphereJuly 7, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
6 Petrogenic Gas Petrogenic Gas: In geology, petrogenic gas refers to natural gas that is the […] Petrogenic GasJuly 6, 2021 in Glossary by Geo Forward
8 Natural Gas Natural Gas: In geology, natural gas means combustible hydrocarbon gas that forms by […] Natural GasJuly 6, 2021 in Glossary by Geo Forward (updated on July 6, 2021)
6 Biogenic Gas Biogenic Gas: In geology, biogenic gas refers to natural gas that is the […] Biogenic GasJuly 6, 2021 in Glossary by Geo Forward (updated on July 6, 2021)
Asthenosphere Asthenosphere: The asthenosphere underlies the lithosphere. The Asthenosphere comprises the upper mantle, where isostatic […] AsthenosphereJuly 2, 2021 in Glossary by Karen Pacle
Lithosphere Lithosphere: The lithosphere comprises the Earth’s crust as well as part of the upper […] LithosphereJuly 2, 2021 in Glossary by Karen Pacle (updated on July 2, 2021)
1 Well Graded Soil Well Graded: In the soil classification process of geology, well graded soil […] Well GradedJune 29, 2021 in Glossary by Geo Forward (updated on June 29, 2021)
2 Poorly Graded Soil Poorly Graded: In the soil classification process of geology, poorly graded soil […] Poorly GradedJune 29, 2021 in Glossary by Geo Forward (updated on June 29, 2021)
3 Volcanology Volcanology: Volcanology is a branch of geology that focuses on the study of volcanos. […] VolcanologyJune 28, 2021 in Glossary by Geo Forward (updated on June 28, 2021)
Diagenesis Diagenesis: In geology, diagenesis refers to the physical and chemical changes of a sedimentary […] DiagenesisJune 28, 2021 in Glossary by Karen Pacle
4 Extrusive Rocks Extrusive Rocks: In the volcanology branch of geology extrusive rocks are igneous rocks […] Extrusive RocksJune 28, 2021 in Glossary by Karen Pacle (updated on June 28, 2021)
Confined Aquifer Confined Aquifer: In the hydrogeology branch of geology, a confined aquifer is an […] Confined AquiferJune 25, 2021 in Glossary by Karen Pacle (updated on June 25, 2021)
Unconfined Aquifer Unconfined Aquifer: In the hydrogeology branch of geology, an unconfined aquifer is an […] Unconfined AquiferJune 25, 2021 in Glossary by Karen Pacle (updated on June 25, 2021)
4 Hydro-Geology (Hydrogeology) Hydro-Geology (Hydrogeology): Hydrogeology is a branch of geology that relates to the study […] Hydro-Geology (Hydrogeology)June 25, 2021 in Glossary by Geo Forward (updated on June 25, 2021)
Water Table Water Table: In the hydrogeology branch of geology, the water table represents the […] Water TableJune 25, 2021 in Glossary by Karen Pacle (updated on June 25, 2021)
Epicenter Epicenter: In the seismology branch of geology, an epicenter of an earthquake is the […] EpicenterJune 24, 2021 in Glossary by Karen Pacle (updated on June 24, 2021)
Focus (Hypocenter) Focus (Hypocenter): In the seismology branch of geology, a focus, or hypocenter, refers […] Focus (Hypocenter)June 24, 2021 in Glossary by Karen Pacle (updated on June 24, 2021)
Connate Water Definition Connate Water: In geology, connate water is groundwater that has been trapped […] Connate WaterJune 23, 2021 in Glossary by Karen Pacle (updated on June 23, 2021)
Feldspars Feldspars: In the field of geology, and the branch of mineralogy, feldspars are a […] FeldsparsJune 23, 2021 in Glossary by Karen Pacle
1 Alquist-Priolo Earthquake Fault Zoning Act Alquist-Priolo Earthquake Fault Zoning Act: The Alquist-Priolo Earthquake Fault Zoning Act […] Alquist-Priolo Earthquake Fault Zoning ActJune 21, 2021 in Glossary by Geo Forward (updated on June 21, 2021)
1 Transgression Transgression: In geology, the term transgression is the formation of a specific sequence of […] TransgressionJune 20, 2021 in Glossary by Karen Pacle (updated on June 20, 2021)
Regression Regression: In geology, regression is the formation of a specific sequence of sedimentary and […] RegressionJune 20, 2021 in Glossary by Karen Pacle (updated on June 20, 2021)
Growth Fault Growth Fault: In geology, a growth fault is a strike-slip fault or dip-slip […] Growth FaultJune 18, 2021 in Glossary by Karen Pacle (updated on June 21, 2021)
Fault Scarp Fault Scarp: In the field of geology, a dip-slip fault scarp is a […] Fault ScarpJune 18, 2021 in Glossary by Karen Pacle (updated on June 21, 2021)
Fault Creep Fault Creep: Fault creep means slow ground displacement of a strike-slip fault or […] Fault CreepJune 17, 2021 in Glossary by Karen Pacle (updated on June 21, 2021)
1 Facies Facies: In the field of geology, the term “facies” represents a mappable, areally restricted […] FaciesJune 17, 2021 in Glossary by Karen Pacle (updated on June 17, 2021)
Provenance Provenance: In the field of geology, and the branch of geomorphology, the term “provenance” […] ProvenanceJune 17, 2021 in Glossary by Karen Pacle (updated on June 17, 2021)
Mineral Assemblages Mineral Assemblages: In the field of geology and the branch of mineralogy, the […] Mineral AssemblagesJune 17, 2021 in Glossary by Karen Pacle (updated on June 17, 2021)
1 Cation Cation: In the fields of chemistry and geochemistry, a cation is a positively charged […] CationJune 17, 2021 in Glossary by Karen Pacle (updated on June 17, 2021)
1 Anion Anion: In the fields of chemistry and geochemistry, an anion is a negatively charged […] AnionJune 17, 2021 in Glossary by Karen Pacle (updated on June 17, 2021)
3 Environmental Consultant Environmental Consultant: An environmental consultant is an expert of any profession or field, […] Environmental ConsultantJune 14, 2021 in Glossary by Geo Forward (updated on June 14, 2021)
8 Terrestrial Planet Definition A terrestrial planet is any planet in the universe that has earth-like […] Terrestrial Planet DefinitionJune 7, 2021 in Glossary by Geo Forward (updated on June 7, 2021)
Engineering Geology or Geological Engineering Engineering Geology: Engineering geology is also referred to as “geological […] Engineering Geology & Geological EngineeringJune 7, 2021 in Glossary by Geo Forward (updated on June 28, 2021)
11 Seismology Seismology: (seis·mol·o·gy) a branch of geology and geophysics that relates to earthquakes, including but […] SeismologyJune 7, 2021 in Glossary by Geo Forward (updated on June 7, 2021)
5 Environmental Geology Environmental Geology: (en·vi·ron·men·tal ge·ol·o·gy) a branch of geology that relates to the impact […] Environmental GeologyJune 7, 2021 in Glossary by Geo Forward (updated on June 14, 2021)
4 Waterproofing Barrier System Definition A waterproofing barrier system guarantees full protection to walls, foundations, and […] Waterproofing Barrier SystemMay 20, 2021 in Glossary by Geo Forward (updated on May 20, 2021)
1 Wing Dam or Wing Dike A “Wing Dam” or “Wing Dike” refers to a dam […] Wing Dam or Wing Dike DefinitionMarch 24, 2021 in Glossary by Geo Forward (updated on March 24, 2021)
7 Strike-Slip Fault or Transform Fault Strike-Slip Fault (Transform Fault): In the field of geology, a […] Strike-Slip Fault (Transform Fault) DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on March 23, 2021)
Oblique-Slip Fault Oblique-Slip Fault: In geology, an oblique-slip fault is a fault that moves parallel […] Oblique-Slip Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward
2 Listric Fault Listric Fault: In the field of geology, a listric fault refers to a […] Listric Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on March 23, 2021)
7 Dip-Slip Fault Dip-Slip Fault: In geology, a dip-slip fault is any fault in which the […] Dip-Slip Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on March 23, 2021)
5 Normal Fault Normal Fault: In the field of geology, a normal fault is a type […] Normal Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on June 24, 2021)
4 Reverse Fault Reverse Fault: In the field of geology, a reverse fault is a dip-slip […] Reverse Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on March 23, 2021)
2 Thrust Fault Thrust Fault: In the field of geology, a thrust fault is a reverse […] Thrust Fault DefinitionMarch 23, 2021 in Glossary by Geo Forward (updated on March 24, 2021)
2 What is a Concrete Slab and Buttress Dam? A Concrete Slab and Buttress Dam is […] Concrete Slab and Buttress DamMarch 18, 2021 in Glossary by Geo Forward
4 What is a Concrete Arch Dam? A Concrete Arch Dam is a curved freshwater-retaining structure […] Concrete Arch DamMarch 18, 2021 in Glossary by Geo Forward (updated on March 18, 2021)
3 What is an Embankment Dam? An Embankment Dam is a freshwater-retaining structure comprising excavated rock, […] Embankment DamMarch 18, 2021 in Glossary by Geo Forward (updated on March 18, 2021)
5 What is a Concrete Gravity Dam? A Concrete Gravity Dam is also known as “Gravity […] Concrete Gravity DamMarch 18, 2021 in Glossary by Geo Forward (updated on March 18, 2021)
1 Seismic Risk Definition Seismic risk is the probability that a subject site will be adversely […] Seismic Risk DefinitionMarch 16, 2021 in Glossary by Geo Forward (updated on June 24, 2021)
1 Monoculture Definition The term “Monoculture,” in the fields of farming and agriculture, refers to a […] Monoculture DefinitionMarch 4, 2021 in Glossary by Geo Forward
Twinning Definition Twinning is the observed intergrowth of multiple crystals in a symmetrical fashion. This […] Twinning DefinitionFebruary 16, 2021 in Glossary by Karen Pacle
Type Section Geologic Definition In geology, the term “type section” refers to a specific stratigraphic […] Type SectionFebruary 1, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
4 Rock Stratigraphic Unit In the field of geology, a rock stratigraphic unit, or a lithostratigraphic […] Rock Stratigraphic UnitJanuary 31, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
Zeolites Definition In geology, zeolites are a group of hydro-alumino-silicate minerals that are compositionally analogous […] ZeolitesJanuary 31, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
Zoning Mineralogy Definition Zoning is a variation of crystal composition that is a characteristic of […] Zoning Mineralogy DefinitionJanuary 31, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
Index Fossil Definition An Index fossil, in the field of paleontology, refers to a fossil that […] Index FossilJanuary 31, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
3 Intrusive Rocks In the volcanology branch of geology, intrusive rocks are igneous rocks that form […] Intrusive RocksJanuary 30, 2021 in Glossary by Karen Pacle (updated on June 28, 2021)
1 Mafic Definition In geology, “mafic” is a term that describes an igneous rock that has […] MaficJanuary 30, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
“Test” Definition in Paleontology In the field of paleontology, a subsidiary of geology, the term […] “Test” Definition in PaleontologyJanuary 30, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
2 Time Stratigraphic Unit Definition A Time Stratigraphic Unit, or a Chronostratigraphic Unit, is a rock […] Time Stratigraphic UnitJanuary 30, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
2 Aphanitic Definition Aphanitic: In geology, the term aphanitic describes the texture of plutonic or volcanic […] AphaniticJanuary 29, 2021 in Glossary by Karen Pacle (updated on June 29, 2021)
2 Phaneritic Definition In geology, the term Phaneritic applies to the texture of an igneous rock. […] PhaneriticJanuary 29, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
Ultramafic Definition In the study of geology, the term “ultramafic” refers to an igneous rock […] UltramaficJanuary 27, 2021 in Glossary by Karen Pacle (updated on February 1, 2021)
2 Silicates Definition In the fields of geology and mineralogy, the term “silicates” refers to compounds […] SilicatesJanuary 26, 2021 in Glossary by Karen Pacle (updated on January 26, 2021)
Recurrence Interval Meaning In the field of geology, the term “Recurrence Interval” refers to the […] Recurrence IntervalJanuary 25, 2021 in Glossary by Karen Pacle
Rigidity Definition Rigidity – In geotechnical engineering and engineering geology, rigidity represents the ratio of […] RigidityJanuary 24, 2021 in Glossary by Karen Pacle
Rotational Slide (Slump) Definition Rotational Slide (Slump) – A type of landslide movement that occurs […] Rotational Slide (Slump)January 23, 2021 in Glossary by Karen Pacle
Settlement Definition In the field of geology, The term settlement means a gradual downward movement […] SettlementJanuary 23, 2021 in Glossary by Karen Pacle
Seiche Definition The term “Seiche” in geology refers to a wave-oscillation, that comes from any […] SeicheJanuary 23, 2021 in Glossary by Karen Pacle
Soil Creep Definition Soil Creep is a type of landslide that entails the slow and […] Soil CreepJanuary 23, 2021 in Glossary by Karen Pacle
Translational Slide Landslide Translational Slide: In the seismology branch of geology, a translational slide is […] Translational Slide DefinitionJanuary 23, 2021 in Glossary by Karen Pacle (updated on June 24, 2021)
“Toe” of a Slope Definition The “toe” of a slope is essentially the bottom, or […] Toe of a SlopeJanuary 23, 2021 in Glossary by Karen Pacle (updated on January 23, 2021)
Triggered Creep In the field of geology, the term “Triggered Creep” refers to a type […] Triggered CreepJanuary 22, 2021 in Glossary by Karen Pacle
61 Geology Geology: Geology is a field of science relating to the earth, including but not […] GeologyJanuary 22, 2021 in Glossary by Geo Forward (updated on June 30, 2021)
Darcy’s Law In the field of geology, Darcy’s Law is the universal and basic equation […] Darcy’s LawJanuary 15, 2021 in Glossary by Karen Pacle (updated on January 15, 2021)
Hydro-Compaction Definition (Hydrocompaction) The term “Hydro-Compaction” or “Hydrocompaction” in engineering geology refers to the process […] Hydrocompaction DefinitionJanuary 15, 2021 in Glossary by Karen Pacle (updated on January 22, 2021)
Mineraloid Definition The term “mineraloid” refers to a natural earth substance that appears to be […] MineraloidJanuary 15, 2021 in Glossary by Geo Forward (updated on January 15, 2021)
Mineral Definition A mineral is defined as an inorganic element, compound, or substance that naturally […] MineralJanuary 15, 2021 in Glossary by Geo Forward (updated on January 17, 2021)
Metamorphic Rock Definition In the field of geology, the term “Metamorphic Rock” refers to a […] Metamorphic RockJanuary 6, 2021 in Glossary by Geo Forward (updated on January 15, 2021)
Sedimentary Rock Definition In geology, the term “Sedimentary Rock” refers to the classification of rock […] Sedimentary RockJanuary 5, 2021 in Glossary by Geo Forward (updated on July 7, 2021)
Volcanic Rock (Igneous) Definition A “Volcanic Rock” is an igneous rock that is finely crystalline […] Volcanic Rock (Igneous)January 4, 2021 in Glossary by Geo Forward (updated on January 15, 2021)
Igneous Rock Definition In the field of geology, the term “Igneous Rock” refers to one […] Igneous RockJanuary 4, 2021 in Glossary by Geo Forward (updated on January 30, 2021)
Geologic Time Scale The Geologic Time Scale is an international system used by geologists to […] Geologic Time ScaleDecember 31, 2020 in Geology & Earth Science / Glossary by Geo Forward (updated on December 31, 2020)
Plutonic Rock (Igneous) Definition The term “Plutonic” in the field of geology refers to an […] Plutonic Rock (Igneous)December 31, 2020 in Glossary by Geo Forward (updated on January 15, 2021)
Tsunami Tsunami: In the seismology branch of geology, a tsunami is an oceanic wave (gravitational) […] TsunamiDecember 31, 2020 in Glossary by Karen Pacle (updated on June 24, 2021)
Sand Boil A “Sand Boil” is a cone-shaped deposit of sand that is formed during […] Sand BoilDecember 20, 2020 in Glossary by Karen Pacle
Seismic Moment Seismic Moment: In the seismology branch of geology, seismic moment represents a measure […] Seismic MomentDecember 17, 2020 in Glossary by Karen Pacle (updated on June 24, 2021)
Moment Magnitude (M) Moment Magnitude (M): In the seismology branch of geology, moment magnitude is […] Moment Magnitude (M)December 17, 2020 in Glossary by Karen Pacle (updated on June 24, 2021)
Subsidence “Subsidence” is a geologic condition, in which a localized mass movement occurs, resulting in […] SubsidenceDecember 17, 2020 in Glossary by Karen Pacle
Surface-Wave Magnitude “Surface-Wave Magnitude” is the magnitude of an earthquake that scientists estimate using measurements […] Surface-Wave MagnitudeDecember 17, 2020 in Glossary by Karen Pacle
Topple Definition Topple – Slope movement due to forces that cause an overturning moment about […] ToppleDecember 17, 2020 in Glossary by Karen Pacle (updated on January 23, 2021)
Runoff (R) The term “Runoff” (R) in hydrogeology and geology refers to the part of […] Runoff (R)December 16, 2020 in Glossary by Karen Pacle
Potentiometric Surface The term “Potentiometric Surface” means the hydrogeological surface that represents the total hydraulic […] Potentiometric SurfaceDecember 16, 2020 in Glossary by Karen Pacle
Permeability “Permeability” in engineering geology and geotechnical engineering refers to the property of a soil […] PermeabilityDecember 16, 2020 in Glossary by Karen Pacle (updated on December 16, 2020)
Hydraulic Conductivity (K) “Hydraulic Conductivity” (K), in hydrogeology and hydrology, represents the capacity of a […] Hydraulic Conductivity (K)December 16, 2020 in Glossary by Karen Pacle (updated on January 15, 2021)
Porosity (n) “Porosity” (n), in the geological engineering field, is a percentage value that represents […] Porosity (n)December 16, 2020 in Glossary by Karen Pacle
Licensed Professional Geologist A “Licensed Professional Geologist” or a “Certified Professional Geologist” is a person […] Licensed Professional GeologistDecember 15, 2020 in Glossary by Geo Forward (updated on December 15, 2020)
Consistency The term “Consistency” in the fields of engineering geology and geotechnical engineering means the […] ConsistencyDecember 15, 2020 in Glossary by Karen Pacle
Consolidation “Consolidation” in geology refers to the gradual or slow reduction in the volume of […] ConsolidationDecember 15, 2020 in Glossary by Karen Pacle
Critical Void Ratio The “Critical Void Ratio,” in soil science and geology, represents the final […] Critical Void RatioDecember 15, 2020 in Glossary by Karen Pacle (updated on December 16, 2020)
Degree of Saturation (SR) “Degree of Saturation” (SR) is an engineering geology term and refers […] Degree of Saturation (SR)December 15, 2020 in Glossary by Karen Pacle
Direct Shear Test A Direct Shear Test is a geotechnical engineering laboratory procedure that measures […] Direct Shear TestDecember 14, 2020 in Glossary by Karen Pacle
Dilatancy “Dilatancy” is the increase in the bulk volume of a soil substance during deformation. […] DilatancyDecember 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Gap-Graded The term “Gap-Graded” is used by geologists, engineers, and soil scientists in the geotechnical […] Gap-GradedDecember 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Adsorption “Adsorption” in geology, refers to the attraction and adhesion of the ions or molecules […] AdsorptionDecember 14, 2020 in Glossary by Karen Pacle (updated on January 22, 2021)
Effective Size (D10) “Effective Size” (D10) is an engineering geology term. Effective Size represents a […] Effective Size (D10)December 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Effective Stress (σ’) “Effective Stress” (σ’) is a geotechnical engineering term. Effective Stress is a […] Effective Stress (σ’)December 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Liquefaction Liquefaction: Liquefaction is the process by which there is: (1) a sudden and significant […] LiquefactionDecember 14, 2020 in Glossary by Karen Pacle (updated on June 23, 2021)
Liquid Limit (LL) “Liquid Limit (LL)” in the field of geological engineering, refers to the […] Liquid Limit (LL)December 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Hooke’s Law “Hooke’s Law” is a geological statement relating to the elastic deformation of rocks. […] Hooke’s LawDecember 14, 2020 in Glossary by Karen Pacle
Dry Density (ρd) “Dry Density” (ρd) is a value that represents the density of soil […] Dry Density (ρd)December 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Dry Strength “Dry Strength” is a value that represents the strength of a soil sample, […] Dry StrengthDecember 14, 2020 in Glossary by Karen Pacle (updated on December 14, 2020)
Hardpan (Caliche) “Hardpan” is a highly dense and solid layer of soil near the ground […] Hardpan (Caliche)December 14, 2020 in Glossary by Karen Pacle (updated on December 15, 2020)
Environmental Law Environmental Law refers to the various categories of law that are put in […] Environmental LawMay 27, 2020 in Glossary by Geo Forward (updated on January 25, 2021)
Retaining Wall Retaining Wall: A structure that provides the support needed to hold (in place) […] Retaining WallMay 25, 2020 in Glossary by Geo Forward (updated on December 14, 2020)
Environmental Professional Definition Environmental Professional: As per the EPA’s All Appropriate Inquiries Rule, an environmental […] Environmental Professional DefinitionFebruary 8, 2019 in Environmental Due Diligence / Environmental Engineering & Construction / Glossary by Geo Forward (updated on July 18, 2021)
Soil Compaction Testing or Soil Density Testing Soil compaction testing, or soil density testing, is […] Soil Compaction Testing and Soil Density TestingDecember 9, 2015 in Glossary by Geo Forward (updated on January 15, 2021)