I need help with Geology question?
Late Heavy Bombardment was about 4 billion years ago long before the dinosaurs. This has a good answer: http://en.wikipedia.org/wiki/Late_Heavy_... The main piece of evidence for a lunar cataclysm comes from the radiometric ages of impact melt rocks that were collected during the Apollo missions. The majority of these impact melts are believed to have formed during the collision of asteroids or comets tens of kilometers across, forming impact craters hundreds of kilometers in diameter. Look below for an explanation of Earth geological consequences. They said it better than I could.
I need help on some of my geology questions?
Question 1 Which of the following is an absolute dating technique? a.faunal succession b.dendrochronology c.stratigraphy d.superposition Question 2 Absolute dating can be used for which of the following? fossils only rocks only rock layers only rocks and fossils Question 3 Isotope Half-life Radon-222 3.8 days Carbon-14 5730 years Lead-210 20.4 years Potassium-40 1.25 billion years Which isotope in the table above would be best to date a fossilized tree ? Carbon-14 Lead-210 Radon-222 Potassium-40 Question 4 A sample of uranium ore has a lead-206/uranium-235 ratio of 15 g/30 g. Uranium-235 has a half-life of 4.3 billion years. How old is the uranium sample? Answer 500 million years old 1.25 billion years old 2.15 billion years old 4.3 billion years old. Question 5 What is the half-life of carbon-14? Answer 5,730 years 713 million years 1.25 billion years 4.3 billion years Question 6 What is the limit on carbon dating? Answer 10,000 years 50,000 years 500,000 years 1 million years Question 7 Potassium-40 decays into argon-40. Which of the following statements is true about dating with this isotope? Check all that apply. Answer Potassium-40 is the parent isotope. It is useful for dating objects that are thousands of years old It has a half-life of 1.25 billion years mass changes
Geology questions I need help with?
Which of the following materials would transmit water most easily? A)Silt B)Gravel C)Clay D)aquifer Water used to flush a toilet in a city is pumped to a sewage treatment plant, purified, and discharged into a nearby stream A)The water has been withdrawn B)The water has been polluted C)The water has been consumed D)The water has been contaminated
Need help with some geology questions.?
the region of geology is extremely superb and that i beg you to maintain on alongside with your course, maybe you will additionally be fortunate sufficient to paintings as a geologist (as I genuinely have performed for over 2 a protracted time). The info for an exceedingly previous earth (say, 4 billion years provide or take some hundreds of hundreds!) is without hardship, wondrous, awe-inspiring and overwhelming, and the arguments for this are in simple terms too many to repeat right here. pass look on the cyber web! pay attention: a great number of the stuff placed out via "youthful earth creationists" and "clever designers" (taking the Bible actually at 6000 years previous) is in simple terms propaganda, undesirable technological know-how (VERY undesirable technological know-how), and that contains solutions via distinctive repeat offenders on yahoo Q&A. you will in simple terms might desire to have confidence me as a professonal geologist in this one. That stated, there is distinctive room in geology, and all of technological know-how, for a sensible and non-literal interpretetation of the bible that could accomodate the two the technological know-how and the non secular. i'm confident you comprehend what i'm speaking approximately! pass and learn the region of Geology, and if that strenghtens your notion in God, nicely thats each and all the greater helpful. Now the respond above isn't fairly what you're searching for for i'm confident. Undoubtably your lecturer has been an entire ar*e, and set a foul occasion of instructors greater often than no longer, yet i'm confident she does comprehend what she is speaking approximately. It strikes me as fairly un-Christian to intentionally attempt to harass her, and a tad infantile. you will possibly do greater helpful interior the long-term to take heed to intently to what she has to assert (arrive 5 minutes early next time, alongside with your documents, and get a front seat) and then ask her a intently considered and technically no longer uncomplicated question that has to make her rather think of on her ft. you would be rewarded with good marks, possibly a qualification (and, who's conscious of, possibly even a place in heaven interior the afterlife!!!)
Need help in Geology!!!!!!!!?
1. Above and below. Confined aquifers are those which do not allow for the entry of water or other fluids percolating through the soil due to the impermeable rock surrounding it. 2. Ductile. Brittle would mean that the rock fractured i.e. it was too stiff to allow for folding to occur. Elastic deformation means that when stress is placed on a rock, it will bend ever so slightly and after the stress is removed it will return to its previous state. 3. Horizontal shortening. Thrust faults look like a z, where you are 'losing' crust because there are compressional forces pushing the crust together and this encourages erosion etc.
Geology questions need help asap?
2. Where would two plates move apart at mid-ocean ridges? At an active divergent zone. This is a weird question, because the answer is in the question. This was the only thing I could think of adding to it. 3. What forms in the rifts of spreading boundaries? Magma from upwelling mantle. 4. What might happen when two plates bump into each other? One could be subducted under the other, or they could collide and crumple up together. 5. What forms where an oceanic plate begins to move down in a subduction zone? Back arc vulcanism creating and island arc chain. 6. Pressures along boundaries of colliding sections of continental crust may fold rock layers producing what landforms? A thrust and fold belt (of mountains). 7. What two plates meet at the San Andrea's fault? The North American Plate and the Pacific Plate. 8. What type of boundary is the San Andrea's fault? A transform boundary. 9. Convection currents transfer (HEAT) through (LIQUIDS) or (GASES). 10. What two kinds of crust can a plate contain? Continental crust and oceanic crust. 11. (MANTLE) flowing beneath the lithosphere might cause the plates to move. 23. Pangaea formed about (300, I THINK) mya. then about 225 mya, Pangaea began to break apart eventually forming (LAURASIA) and (GONDWANALAND) 135 mya, Africa and South America were joined but slowly began to separatee. so did (EURASIA?) and (AUSTRALIA?) and north america and (ANTARCTICA?) into the continents we now see today.
Need help on a couple of Geology Questions?
Need some help on 2 problems. The Earth's magnetic field is the result of: A. the movement of the tectonic plates. B. the rotation of the Earth on its axis. C. convection of the Earth's mantle. D. movements in the inner and outer core. Hot mantle rises toward the surface to form new crust at A. subduction zones. B. transform faults. C. mid-ocean ridges. D. continent/continent collisions.
I need help in Geology test?
Sorry but it is unethical to do your homework for you. If you will repost with the answers you feel are correct, I'll be happy to review them and explain errors. The purpose of a test is to determine if you have a mastery of the subject. Without your participation I've no way of knowing your true needs.
Need help with some Geology Review questions ?
1. What size is the circular path of water particles as a result of surface waves compared to the wavelength? A. about twice B. equal to C. about one-half D. about one-tenth 2. Which is the silt that produces fertile farmland and is deposited from wind off a glacier? A. outwash deposit B. sedimentary soil C. loess D. drumlin 3.Which zone is the upper crust through which hot water has circulated and in which many metal ores can be found? A. hydrothermal B. magmatic C. disseminated D. placer 4. What causes the tides? A. wind B. seismicity C. ocean currents D. gravity 5. Diamonds have been found in which type of deposit? A. placers B. banded formations C. manganese modules D. stratiform deposits Brushing up on my geology for the Praxis exam.. any help would be great.
How can I study geology with the help of internet?
Geology is not a subject which is confined in books. A geologist is a wanderer and nature is the only book which would teach you more.Reading concepts on the internet and experiencing them in fields is a good way of way gaining knowledge.There are few sites, which you can refer for reading:Suggested pages - AAPG WikiCategory:Glossary -SEG Digital Library (Society of Exploration Geophysicists)You can google and find even more, but referring to these sites will help you understand better and you would also be aware of whats going around in the world.