What is well log data?
GeologyWell logs are records of petro-physical data acquired along a borehole, providing direct information about what is in the subsurface. The data collected by logging wells can have significant economic consequences, due to the costs inherent to drilling wells, and the potential return of oil deposits. What is in a well log? Well logs are
Pourquoi le magma est visqueux ?
GeologyLes roches solides situées en profondeur ( km) et soumises à des conditions de pression et de température élevées, fondent partiellement (fusion partielle) et forment le magma, plus ou moins visqueux suivant sa composition chimique et sa richesse en silice, qui migrera lentement vers le haut. Qu’est-ce qu’un magma visqueux ? Le magma est visqueux
How is relative age important to the geologic time scale?
GeologyRelative Age Dating Geologists determine the sequence of events from their position in the rock record with older events/rocks usually occurring in the lowest layers and later events higher in the rock sequence. Why is relative age important? Relative age means age in comparison with other rocks, either younger or older. The relative ages of
Do metamorphic rocks form when melting occurs?
GeologyThe process of metamorphism does not melt the rocks, but instead transforms them into denser, more compact rocks. New minerals are created either by rearrangement of mineral components or by reactions with fluids that enter the rocks. Does metamorphic rocks be formed from melting? In order to create metamorphic rock, it is vital that the
What is BrainPOP weathering?
GeologyWhat is weathering? A process the breaks down rocks into smaller pieces. What Brainpop forces cause mechanical weathering? TIM: Mechanical weathering breaks down rocks without changing their chemical composition. Forces like growing plants, expanding ice, lightning, and mineral crystal growth can all cause mechanical weathering. What impact does weathering have on soil formation Brainpop? What
What is considered a Ferromagnesian silicate?
GeologyFerromagnesian silicates contain iron (Fe) or Magnesium (Mg). These elements produce dark mineral colors. The ferromagnesian minerals tend to look metallic in their luster, have relatively high density, and are often magnetic. Non-silicate minerals include a wide variety of minerals. What mineral is a Ferromagnesian silicate? Biotite mica can have iron and/or magnesium in it
How do you get to Siccar point?
GeologySiccar Point is a short walk from the nearest road, and it is signposted as part of the Berwickshire Coastal Path, which runs from Cockburnspath to Berwick upon Tweed. One of the best approaches is along the coastal path from Cove to the north – this is a 6 km walk on grassy paths and
What are two ways volcanoes can form near convergent boundaries?
GeologyAs the sinking plate moves deeper into the mantle, fluids are released from the rock causing the overlying mantle to partially melt. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary. What are two ways volcanoes can form? Divergent boundaries (crust moves
Where can you find scoria?
GeologyScoria is common in areas of recent volcanism, such as the Canary Islands and the Italian volcanoes. It is relatively low density due to its vesicles, bu it is not as light as pumice. Also differs from pumice in that it has larger vesicles with thicker walls. Where does scoria come from? Scoria forms when
How does a sedimentary rock become stratified?
GeologyStratification in sedimentary rocks may result from changes in texture or composition during deposition; it also may result from pauses in deposition that allow the older deposits to undergo changes before additional sediments cover them. How does a sedimentary rock become stratified Brainly? Answer Expert Verified Stratified rocks are nothing but sedimentary rocks. Strata means