Geology. The ocean beach of Long Beach is located in the Long Beach sub-cell of the Columbia River littoral cell🕈. The majority of the Long Beach Peninsula—including the jurisdictional shorelands🕈 of the city of Long Beach—is an accreted🕈 sand bar created primarily from sediments transported by the Columbia River to the Pacific Ocean, then transported northward by xxxxxxxxx🕈 ocean currents. A comparative review of historic aerial photos reveals the amount of accretion since 1889 has been just under 2,000 feet in total, and accretion has averaged approximately 15.7 feet per year. Soils. Accretion occurred in parallel north south waves from the east accreting to the west, and so the oldest soils occur on the eastern shore along Willapa Bay, and the youngest soils occur on the western shore along the ocean beach. Also, because of this pattern of deposition, soils tend to trend in north-south bands. Nearly all of the soils of the Long Beach area are sand in nature,
Geology. An environmental geoscientist needs an excellent understanding of the materials from which the Earth is made, the processes acting on and within the Earth, and Earth structures. The student should also have learned the history of the changing Earth through time, and how the rock record can be interpreted to provide evidence of these changes. The following competency areas will allow majors to identify and solve problems in the geosciences: Competency Area 1: Formation Of The Solar System And Earth Competency Area 2: Plate Tectonics And Earthquakes Competency Area 3: Minerals Competency Area 4: Igneous Rocks And Environments Competency Area 5: Weathering, Soil, And Mass Wasting Competency Area 6: Sedimentary Rocks And Environments Competency Area 7: Metamorphic Rocks And Environments Competency Area 8: Deformation And The Continents Competency Area 9: Surface Water And Groundwater Competency Area 10: Climate, Glaciers, Wind, And Coastal Processes Competency Area 11: Geologic Time And Rock Correlation Competency Area 12: Stratigraphy Competency Area 13: Sedimentary Environments Competency Area 14: Origin And Diversity Of Life Competency Area 15: Evolution Competency Area 16: The Precambrian Competency Area 17: Early Paleozoic Life And Earth History Competency Area 18: Late Paleozoic Life And Earth History Competency Area 19: Mesozoic Life And Earth History Competency Area 20: Cenozoic Life And Earth History Competency Area 21: Primate And Human Evolution Competency areas #1-11 are often taught as part of a Physical Geology course. Additional competencies in #11-21 are often taught as part of a Historical Geology course. See Appendix C: Competencies for Preparation in Geology.
Geology. 11. Likelihood of hydrologic connectivity between the respective xxxxx
Geology. 1.1.5 Permafrost characteristics (ground temperature, ground ice content, and active layer thickness) and distribution
Geology. Xxxxxxx Field is located at the northern end of the Santa Xxxxx Valley Basin, about I mile south of San Francisco Bay. The Santa Xxxxx Valley Basin is a Pliocene-age, large, northwest-trending structural depression between the San Andreas and Hayward faults. The basin is bordered on the west by the Santa Xxxx Mountains and on the east by the Diablo Range. Regionally, the Santa Xxxxx Valley contains up to 1,500 feet of interbedded alluvial, fluvial, and estuarine deposits (Iwamura, 1980). Locally, these sediments consist of varying combinations of clay, silt, sand, and gravel that represent interfingering of estuarine and fluvial depositional environments during the late Pleistocene and Holocene epochs. The interfingering of fluvial and estuarine sediments in southern San Francisco Bay is related to world-wide fluctuations in sea level during glacial and interglacial episodes of the late Quaternary period (Tetra Tech, 1998c). The fluvial sediments were derived from the Santa Xxxx highlands west of the basin and deposited on an alluvial plain bounded by alluvial fan deposits to the west and baylands to the northeast (Iwamura, 1980). Surface geologic maps indicate that alluvial fan deposits extend toward the basin approximately to U.S. Highway 101, which forms the southern boundary of Xxxxxxx Field. Shallow deposits on Xxxxxxx Field are branching river and flood plain deposits. Estuarine deposits are found at the extreme northern end of Xxxxxxx Field.
Geology. Deposit type, geological setting and style of mineralisation. • The Cape Bedford / Cape Flattery region of north Queensland is dominated by an extensive Quaternary sand mass and dune field that stretches inland from the present coast for approximately 10km and extends 50km from north to south. • Mineralisation comprises elongate parabolic sand dunes of silica sand, with scattered zones of HM enrichment from wind deflation and possibly buried/preserved beach strandlines. Drill hole Information • A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes: o easting and northing of the drill hole collar o elevation or RL (Reduced Level – elevation above sea level in metres) of the drill hole collar o dip and azimuth of the hole o down hole length and interception depth • No systematic drilling has been undertaken, therefore not applicable at this time. Criteria JORC Code explanation Commentary o hole length. • If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case. Data aggregation methods • In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated. • Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail. • The assumptions used for any reporting of metal equivalent values should be clearly stated. • Not applicable to reconnaissance sampling. Relationship • These relationships are particularly important in the reporting of between Exploration Results. mineralisation • If the geometry of the mineralisation with respect to the drill hole widths and angle is known, its nature should be reported. intercept • If it is not known and only the down hole lengths are reported, there lengths should be a clear statement to this effect (eg ‘down hole length, true width not known’). • Not applicable to reconnaissance sampling. Diagrams • Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being...
Geology. Describe the regional and site specific geology including stratigraphy and structure. Include a geologic map and cross-sections to show the subsurface structure. Cross-sections should be at a natural scale (vertical equals horizontal) and of sufficient detail to accurately plot cut and fills, alluvium, and structural features. Cross-sections should be taken on a grid pattern oriented normal to major geologic structure and spaced close enough to determine geology and ground water flow on a unit- by-unit basis.
Geology. GEO-1 Design and construction of the buildings shall be engineered to withstand the expected ground acceleration that may occur at this site. The calculated design base ground motion for the site shall take into consideration the soil type, potential for liquefaction, and the most current and applicable seismic attenuation methods that are available. All on-site structures shall comply with applicable provisions of the Uniform Building Code and the California Building Code.
Geology. Existing geology data pertinent to the evaluation being performed through this study, will be retrieved from as-built plan information or from investigations performed as part of the 159th St and US 69 Interchange project. No additional field borings or surveys will be performed as part of this scope of services.
Geology. The Westport landfill is situated in a former tidal marshland, consisting of organic silty clay. The lithology encountered during the drilling and sampling of the 24 monitor wellx xxxealed the following: o In those areas not covered with refuse, approximately 5 feet of fill material lies over the former (native) ground surface. The native soil is a soft, moderately plastic, silty clay of relatively low permeability that is very moist to wet. METAL CONCENTRATIONS DETECTED IN GROUNDWATER COLLECTED IN JULY AND AUGUST, 1989 (17 CAM/TTLC METHOD) METAL CONCENTRATION (ppm) ---------------------------------------------------------------------------------------------------------------------------------- Monitoring Well Location and Number Reporting In Refuse Beneath Refuse Metal Limit (ppm) P-1A S-4A S-5 MW-1 MW-2 P-18 X-00 X-0 ----------------------------------------------------------------------------------------------------------------------------------
