Earth Science

Hello, my name is John Dailey, and I had taken Earth Science classes at the University of South Dakota in Vermillion. At that time, what I had learned in those classes had inspired me to create an alternate Earth, with geographic and geological features different from Earth's but still inspired by them. The problem I have is that I know only the Cause--i.e. the changing of the geography--and not the Effect (how the changes in geography influence landscape, climate and weather). I have the whole description written down, but before I show you the description, if it is not too much trouble, would you be willing to help me with feedback and advice on the changes I had made? …

Hi everyone, I'm new here. I am about to graduate a 3 year environmental technology program, and two year biotechnology program. Everything is wrapping up in 4 weeks and I've started looking for work, but I'm still at a bit of a loss for what I want to pursue as a career. And I am still going back and forth about pursuing a degree. Does anyone have any suggestions, or advice? Thanks in advance. Also, I apologize if this post is in the wrong place, I didn't specifically see Environmental Science as a forum and wasn't sure if I could post this here.

I was once told that the science behind radio dating the Earth is filled with assumptions. Like that it's assumed the Lead 210 content of the Earth was at zero when it was cooling. Why would we assume that the Earth contained zero Lead 210 at the point of cooling and how would we account for preexisting Lead 210 when using Uranium-Lead dating methods?

Which climate type dominates in Canada? A. Arid. B. Semi-arid. C. Tropical. D. Continental. What is the best example of human adaptation of our environment? A. Our clothes. B. Irrigation. C. Our houses. D. Earthquakes.

Hi everyone, Aerospace engineer here looking for input outside of my realm of expertise. I've read up quite a bit about home recommendations for air quality -- basically, the idea that a property is more at risk to asthma development/etc. for homes within 300 feet of a major freeway. My family is considering a home that is about 200 feet from an expressway (6 lanes across, stoplights, 45 MPH). The expressway is a major thoroughfare in the area that stretches across several suburbs in Silicon Valley. However, it doesn't see heavy backup at this area. So there's always some light volume of traffic going through but you don't get those endless bumper-to-bumper during…

We hear two sounds from the ocean: "roar" and "crash." Is the roar an accumulation of crashes along the beach, or, is it caused by the air being pushed in front of the waves? Before you answer, consider the roar reportedly heard before a tsunami strikes. Are they the same?

So there is this boulder about 7 ft. tall, 8 ft. wide, and 13 ft. long sitting in a depression of a wet prairie remnant 5 miles from the Columbia River. The constituent rock is porphyritic and I'm thinking andesite. 1/2 mile NE of the boulder is a cinder cone dated at 575+-7KA and classified by geological study as "Olivine phyric basaltic andesite erupted from cinder cone... Light-gray, microvesicular, generally platy lava flow, consists of olivine phenocrysts (2-4 percent; 0.5 to 3 mm across; contains inclusions of chromian spinel; rims variably replaced by iddingsite) in a fine-grained trachytic groundmass of plagioclase, clinopyroxene, ortho…

Assuming for the moment that sunlight provides all of Earth's energy, how would I figure out the equilibrium temperature given a certain percentage combination of gases? I assume its some kind of exponential solution to a differential equation, but I'm not even sure what to look up.

Browsing Google Earth, I came across this area in Siberia. It has a clear circular shape, showing concentric rings, and it's about 10 km across. It's miles away from the nearest road, in a barren very rocky part of the world, so it's not human activity. I've narrowed it down in my own mind, to either an ancient volcano, or impact crater. Impact craters that show are very rare, so the odds are against it, but what do you think? It's worth a look : https://www.google.co.uk/maps/@70.9198194,103.0433649,15024m/data=!3m1!1e3?hl=en Or on Google Earth : 70 deg 55 min 30 sec N 103 deg 05 min 30 sec E

Hey my name is Yoad, I work as a Geologist in Tunnel excavation in Israel. I found these cool rocks in a karst cavity in the tunnel. 1. I think it´s really cool. take notice on the small conglomerate that developed on the stone. 2. besides that I´m curious to know what is the white cement? I think that is a kind of secondary calcite sedimentation. *The rock in the environment where I found the rocks is mostly limestone. thanks.

The latest seems to show carbon will stay in the water column and sea life with eventually going back to the atmosphere and as far as I know this is a scientifically proven result. Are there any other scientifically proven results that are concerns? If it takes 100s of years for carbon to return to the atmosphere it may be worth doing because Mankind will have this time to try to solve CO2 concern in the atmosphere?

Hi all. My name is Mike, and I live in Sandy, Oregon; the great Pacific Northwest! As some may be aware, our weather can change rapidly and dramatically. As it just has, our temperature just dropped from 40s to 20s and colder with lots of freezing rain and snow seemingly overnight. With this recent weather event, I found something of interest in my backyard. Please follow the link below to see the many photos I took of this phenomenon. I'm trying to figure out what might have caused this. It formed in an area where I had attempted to dig a hole, but found that the ground had too much clay in its composition, and so abandoned the plan. I only dug about 3 or 4 inches into t…

This is just a pure thought. I am not very sure about this pure thought. My question is can more ships and boats and submarines cause the sea level to rise?

knowing global warming is limiting ocean upwelling thus plankton blooms, how much upwelling has been limited in the past and more important how much this limited upwelling has contributed to limited plankton blooms thus contributed to global warming? If limited upwelling has great impact to global warming then considerations for mechanically drawing ocean water bottoms to the top should be actively explored. There is about 10% CO2 removal from the atmosphere by way of new plankton blooms from iron fertilization but may have higher atmosphere CO2 affect because of the upwelling concern. One year carbon tax pays for 10 ocean bottoms pumping systems magnitude cost…

We know earth tilt 23 degrees. So how can the sun be directly above when at the equator ? Or is the equator only aproximatly where youd expect the sun directly above ( meaning that the line around earth would also tilt ) Looking at heatmaps of earth where you see most warm at equator. I would take it that its the mean temperature over a year ? Otherwise the "belt" of the suns path around earth being tilted would also have the belt tilt ? Or am i getting this wrong ?

Sketch shows an example of the South Amite River in Louisiana. Flood waters flowed down this basin (1 mile wide) and the river during the Baton Rouge flood a few months ago. Near Baton Rouge level was 17 ft above sea level and near the lake 26 miles downstream it was 4.5 ft ASL. The basin is 1 ft ASL from Baton Rouge to the lake and all the housing is 10 ft or higher ASL and essentially there is no housing in the basin. I am looking at select removal of trees (10-20% ?) in the forested area of the basin between the river meanders but not along the river banks and this will minimize river erosion because most trees will remain and major floods are few. Seems like there w…

I have witnessed falling, and floating specs of a white stiraphom type substance in san francisco today at about 3 0clock. And small pieces kept falling until about 4 o clock. I can see small pieces occasionally now but it finally seems to have stopped. Let's see? What could this be? I saved some smaller pieces, but sadly dropped the biggest one. It felt like a soft stiraphom. Very white, not ash or snow or anything like that. Please let me know asap! I'm very curious. Iv never seen anything like this happen.

Below is an article I will publish and any suggestions are appreciated. The $50 billion project is failing because of 12 shortfalls and below are my resolutions. If interested in any one of them please request more information. Synopsis This Booklet reviews 12 shortfalls total, 3 in the "Sediment Diversions Operations Report" with effective solutions, 6 other shortfalls with effective solutions and 3 other shortfalls with minimized solutions. "Operations Report" shortfalls are limiting sediment diversions in the summer months, marsh drowning and Lafitte flooding. Other shortfalls with Effective Solutions are large diversions limiting number of nurseries, diversion distri…

I want to create an artificial stratosphere for my crop, I might grow some cucumber. Earth has stratosphere because of gravity, but how do I create one in the thin air? Open to ideas, many thanks

Hi all, I am looking at what the different biogeochemical processes and cycles would be in a anoxic water body in an oxygen free world. I've come up with a few basic models but am struggling to find anything online so help would be very much appreciated, i.e. various publications, websites, book chapters and preferably if anyone can help to explain them on here. I am primarily looking at Nitrogen, Carbon Dioxide, Methane and Hydrogen Sulphide cycles, but obviously all without oxygen. In this 'fantasy word' all other conditions (temp, light, air pressure etc.) are similar to Earth, allowing water with the presence of bacteriochlorophyll to form. Any help is…

How to identify the nature of amphibolite lenses within the marble? No alteration is observed along the boundary, except a thin dark coloured zone (baked margin?) along the amphibolite. At places, the amphibolite varies in the range of less than a cm to tens of cms. calcite lens are preserved within the larger amphibolite lenses.

Are greenhouse gases contributed a lot in global warming? How this affect the climate change?

I have lately been pondering the possibility of life existing on a planet that does not have a sun. So far the little research I've done has suggested that the core would have to be hot enough, coupled with a much thicker atmosphere in order to hold an appropriate temperature to sustain life. Other than that I'm pretty stuck. What would be the parameters of such a core and/or atmosphere? Also, the biggest mystery to me is how plant life would be able to thrive, or if life could possibly thrive without plants at all (probably a topic for a different thread). Any information would be much appreciated. Thank you!

I have been reading watching and studying up on multiple science history relations theorem my own thing really, can we be the end result of an intergalactic war for this planet with the loss of so many lives in that war the survivors agreeing to toss away their technology and lock it up to never be found to purposely start over on earth together as primitives and equals, so many years passed so many stories so many myths legends and ideas and could we have been different entirely at first but over millions of years adapted to this system of earth requiring evolution to change our insides all the same yet maintaining outside physical appearances related to our original ext…

Concerning the source of climate change from 1811-1817 and the formation process for the upper lithosphere of the Mississippi embayment... http://researchpublish.com/journal/IJIRI/Issue-3-July-2016-September-2016/0 AN EXTRATERRESTRIAL ORIGIN FOR THE UPLAND FORMATION OF THE MISSISSIPPI EMBAYMENT Vol. 4, Issue 3, July 2016 – September 2016 Tony Hood Download Complete Paper Title: AN EXTRATERRESTRIAL ORIGIN FOR THE UPLAND FORMATION OF THE MISSISSIPPI EMBAYMENT Author: Tony Hood International Journal of Interdisciplinary Research and Innovations ISSN 2348-1218 (print), ISSN 2348-1226 (online) Research Publish Journals ISSN 2348-1218 (print) International…