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Chapter3 PartA Test
Oceanography
| Question | Answer |
|---|---|
| What is a linear sea floor feature that is seismically inactive, occurs beyond offset mid-ocean ridge sediments, and the relative movement between two points on either side of the feature is in the same direction? | Fracture Zone |
| Hydrothermal vents with temperature above 662 fahrenheit form what? | Black Smokers |
| The majority of ocean trenches are along the margins of which ocean? | Pacific Ocean |
| Older Lithosphere is destroyed in association with ______ | Deep-sea trenches |
| The ________ is a transition zone between the continental slope and the deep-ocean floor that is made of a huge submerged pile of debris | Continental Rise |
| In a turbidite deposit with a graded bedding sequence, the particle sizes get smaller going ______ | Upward |
| Which of the following is the predominant process that forms the deposits of metallic minerals in and around black smokers? | Precipitation |
| The distance of 1 fathom was standardized to equal exactly ____ feet | 6 |
| Extending from the base of the continental rises into the deep-ocean basins are flat depositional surfaces called _____ | Abyssal Plains |
| New lithospheres is produced in association with ______ | Oceanic Ridges |
| The speed of sound in seawater varies with what? | Temperature, Pressure and Salinity |
| Oceanic ridges and rises result from seafloor spreading along _________ plate boundaries | Divergent |
| Underwater avalanches of muddy water mixed with rocks and debris are called _________ | Turbidity Currents |
| What process forms the thick blanket of sediment on abyssal plains on the deep-ocean floor in the middle of the Pacific Ocean | Suspension Settling |
| Characteristics of active continental margins include what? | Chains of mountains and deep sea trenches |
| The first recorded attempt to measure the oceans depth over 2,000 years ago was conducted using what technique | Sounding |
| Black smokers most likely form at what tectonic setting? | Divergent Plate Boundary |
| Volcanic peaks that are below sea level but rise MORE than 1 kilometer above deep-ocean floor and have conical tops are called ________ | Seamounts |
| What is the underlying rock for the continental shelf? | Granite |
| Hydrothermal vents with a temperature range from 86 Fahrenheit to 662 Fahrenheit form what? | White Smokers |
| Submarine canyons were most likely formed by ______ | Erosion by turbidity currents |
| Volcanic features on the ocean floor that are LESS than 1 kilometer (0.6 miles) tall are called _________ | Abyssal Hills |
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jacobsonoliviad