Earth Science

I would never have believed that there was a salt water frog that looked much like a Green tree frog until I saw these little frogs in my pool the other day. I initially thought they might be cane toads until I had a closer look and noticed that they had smooth skin and spots of gold along their sides. While the pool pump hasn't been working for a couple of months (no chlorination) and we have had quite a bit of rain lately the pool is still very salty the juveniles like to sit about a metre down before they come out. Freycinet's Blue Frog was originally discovered by Louis de Freycinet during an expedition led by D’Entrecasteaux in 1791. The drawing here from the…

does anyone know the main differences in temperature between land and water and reasons behind them?

Greetings! Unlike many of you I do not have a background in science, but rather am more into the humanities. My current project is world building for a fantasy novel I've been working on, but would like it to be realistic geologically and ecologically, even bordering on the 'hard fantasy' subgenre. My primary focus tonight has been on the scaling of biospheres, particularly how various wetlands (bogs, swamps, and marshes) would interact with a tropical forest environment. I also have an area of a hot desert (on the protected side of a mountain range and next to a cold, southern moving current) that I'm not certain how far inland it would start or if it would be a sand des…

Dear Denizens of Scienceforums, I've stumbled across this website once or twice when searching for explanations on cosmology, biology, etc. Recently I've been struggling with what career path I should choose, and so I want to ask for some advice. I dropped out of college a few years ago for personal issues that I won't go into. But I've always been set on going back. Recently, I've been in a position to go back to school. Before I dropped out of college I took a class on dinosaurs that reignited my passion for paleontology. I was planning on getting a job in the oil industry as a petroleum geologist as I understand they hire paleontologists for that sort of thing. I …

The goal is Genie. Just like the genie from aladdin. In the process of discovering how to create genie, many problems have arisen, and many problems have been solved. What we absolutely need at this point is a programmer who knows the importance of this project and getting it done as soon as possible. I know how to program using Python. Moderators, please help me get this message out there.

Hi everyone, I just figured I would introduce our blog url removed We are a group of postgrads and lecturers from the department of Earth sciences at the University of Manchester and aim our blog at everyone. We would love you to check it out and hope you enjoy it. Thanks

Hello everybody, I am proposing a heat-diffusion model in spherical coordinates applied to the earth. The main idea is that the earth was a hot ball of homogeneous temperature when the earth formed, that did cool down over time due to heat-diffusion. As we know earth formed from an accretion disk, therefore, the homogeneous temperature at earth formation assumption appears to be reasonable. The model provides the temperature-depth profile of the earth at different ages. The model makes two predictions: (1) 4.4 billion years after earth formation, the temperature gradient in the first kilometer of the earth's crust is about 3 degree Celsius per 100 meters. This is w…

Since 1999 he Hubble Space Telescope has captured half a million images -- in black and white. Zoltan Levay of the Space Telescope Science Institute in Baltimore, Maryland, reveals how his team creates the spectacular colour pictures we know. Hear he explains how they do it!! http://www.youtube.com/watch?v=9RpyPJIIppk

My question is Whethher there is any particular reason that it is not present in equator or the arctic pole. Although I know it is not a hole but simply a depletion but why particularly in antatica only? It is also seen only during some months.

Coal deposits from Australia 200-150Mya, when India was adjacent: Could coal deposits in eastern India, on the following figure, be geologically related?? http://www.mapsofindia.com/maps/india/coalreserves.htm http://www.interactions.org/sgtw/2005/1026/iow_20051026.html

In Wikipedia page of Diurnal Temperature variation, there is a statement as following: "As solar energy strikes the earth’s surface each morning, a shallow (1–3 cm) layer of air directly above the ground is heated by conduction. Heat exchange between this shallow layer of warm air and the cooler air above is very inefficient. On a warm summer’s day, for example, air temperatures may vary by 30°F from just above the ground to waist height." First of all, do you believe it? And if you do, how comes that there is such a discrete temperature separation (a difference of up to 30°F) of these two layers (the 3 cm one and the one above it)?

If you are travelling northwesterly while the sun sets and approaching places with midnight sun... Will you ever see the sun set? Once you arrive to a place with midnight sun, what is the longest time you will see the sun not setting? If you were instantly teleported to the antipodes of your location... Would you find yourself in a polar night? Would traveling in a southeasterly direction keep you in the polar night? In general wikipedia does not answers these questions about the polar night and midnight sun... what can you say about them?

Several studies claim an increase of temperature 2-4 Celsius (3-7 Fahrenheit) few days prior to big earthquakes. The heat is supposed to come upward from gases released underground from pressure built. Also, increase of well waters and radon ionization above surface would contribute to the LST increase. In my view, if a relation between LST and earthquakes exist, that would apply just after an earthquake strikes. Isn't there a release of energy when an earthquake occurs and wouldn't this heat up the land above? Please state your opinion?

Between 2006 and 2010 shale gas production in the US increased by 600%. The process involves drilling into gas rich shales then fracturing these to provide sufficient permeability to bring production rates up to commercially viable levels. Gas shales have relatively low porosities, typically less than 10%, and very low permeabilities. Much of the gas is adsorbed on the clay surfaces, though some is present in the pore space. Hydraulic fracturing at very high pressures generates very long fractures that penetrate deep into the formation and provide a conduit for free and adsorbed gas to reach the borehole and production tubing. Claims have been made that the frac…

Wash Boring* Method -sorry- What I don't understand about this method is where the soil sample is going. "A casing is driven with a drop hammer. A hollow drill rod with chopping bit is inserted inside the casing. Soil is loosened and removed from the borehole using water or a drilling mud jetted under pressure." Is The soil removed mixed with the jetted water?? I mean completely mixed, with no form like the shelby pipe, but a liquid with soil particles? Or How exactly, step by step, is the sample extracted? D: Please help, I really dont understand.

This video is kinda grainy but I have read many reports of lights in the sky when an earthquake appears, why might that happen? Is this HAARP, that also seems to come up a lot?

This has been an ongoing investigation for several years: Recent findings suggest a meteor from a serial impact off the dust tail of Comet C/1811F1 was the initial mechanism to cause The New Madrid Earthquakes of 1811-1812. There is a central semi-circular depression in Northeastern Marshall County, Mississippi which every hill in the valley reverberates out from in a shockwave pattern. On the northwest face of this structure numerous unusual rocks were found with the appearance of melt rocks, fusion crust, vitrification, shatter cones, fallback breccia, shocked quartz, nanodiamonds, etc. All aspects of impactites. I have put some more information at this site…

For over a century, we have been drilling into the Earth. In order to suck up oil and gas. This oil and gas was underground for millions of years. During those years, it must have played some part, in supporting the ground above it - ie, the surface. When we remove the oil and gas, by pumping it up, aren't we removing the surface's support - so risking a collapse? Collapses occur, in the case of land on top of abandoned coal mines. The mineshafts, made hollow by removal of coal, are only kept up by wooden pit-props. These props eventually decay. Then the mineshafts collapse. Which causes the land above to subside. This subsidence affects houses and prope…

Imagine the world as a compass you see on a boat, you know the one that is a little ball and it is floating in water. Ok so picture the planet earth as that compass, so it's floating there and something huge comes along like a commet ramming into the earths atmosphere or an earthquake but something be enough to really rattle earth to its core. Maybe something strong enough to make the planet start to sway, ok so picture the compass when the boat gets rocky and how the ball of the compass is roling around and swaying back and forth. Now picture the planet earth doing that after it was hit by this massive thing or even an act of nature. So the planet is sitting there swayin…

Julian Bulman responded to this a couple of days ago, I have asked him for permission to post this elsewhere and he has agreed. Six scientists and one government official have been sentenced to six years in prison for manslaughter, for making "falsely reassuring" comments before the 2009 L'Aquila, Italy earthquake. Let that just sink in for a moment to reflect on the various repercussions this absolutely ridiculous, illogical and obnoxious ruling has on factual studies.Also view this ruling in context of knowing that the L'Aquila region of the Apennines is prone to many earthquakes as can be seen throughout history. Periodicity of earthquakes is a major branch…

What is the composition of Mesosphere.? How it transfer heat b/w Thermos phere which is at average temperature of 2000 Celsius & stratosphere at 100 Celsius & in B/W Mesosphere is at -100 degree ? Which according to heat transfer law should be mean temperature of Both layer. Please do not copy paste your data from Internet. I know 1 bullshit answer of Endothermic reaction of methane the decompose into carbon & Hydrogen & absorb heat & made mesosphere cool. Answer only when you the right answer please.

i'm trying to work out why it is that different volcanoes have different shaped craters and volcanoes even though they have approximately the same ash output, suggesting an equally violent eruption, for example in one period of volcanic activity, mt eden produced approximately the same volume of material during eruptions as mt mangere, yet mt mangere has a dual crater, neither of them evenly shaped or sized while mt eden is has a deeper crater which is perfectly even in shape and size, the domain produced approximately the same volume as mt albert, yet neither volcano has a notable crater and the domain does'nt even have much of a slope, mt smart produced approximately…

We are believing that our outer Core of metallic liquid is rotating at very high velocity around solid inner core generating Current & magnetic Field due to dynamo principle. But what is the Actual truth behind this Story..? Is this Principle is sufficient for Earth EM field..?

Recently I discussed with one person about global flood, which occurred (according his claim) in the ancient world I refuse this event, I think it's nonsense and my general argument is that there's no even necessary amount of water to cover the entire surface of the earth. You need 3 times more water to cover entire land. Let's speculate that we don't know ancient environment and maybe once there was more water, then where all the rest of the water had gone? Is it possible that huge amount of water can disappear from the atmosphere? Or is it possible that the rest of the water could disappear beneath the earth? I'm curious if really exist any scientific hypothesis…