Geosciences posts
- June 18, 2013
- 05:35 AM
- 36 views
New ‘embryonic’ subduction zone found
by Perikis Livas in Tracing Knowledge
A new subduction zone forming off the coast of Portugal heralds the beginning of a cycle that will see the Atlantic Ocean close as continental Europe moves closer to America.... Read more »
Media Release Monash University. (2013) New 'embryonic' subduction zone found. Monash University. info:/
- June 15, 2013
- 07:44 AM
- 52 views
Deciphering climate messages via the heart of the atom
by Andy Extance in Simple Climate
Through a lifelong involvement in nuclear science, Hans Suess developed radiocarbon dating, and provided evidence that burning coal puts carbon into the atmosphere and the activity of the Sun can change, affecting Earth’s climate. ... Read more »
Suess, H. (1954) U. S. Geological Survey Radiocarbon Dates I. Science, 120(3117), 467-473. DOI: 10.1126/science.120.3117.467
Suess, H. (1955) Radiocarbon Concentration in Modern Wood. Science, 122(3166), 415-417. DOI: 10.1126/science.122.3166.415-a
Stuiver, M; Suess, H. E. (1966) On The Relationship Between Radiocarbon Dates And True Sample Ages. Radiocarbon, 534-540. info:/
- June 11, 2013
- 12:12 PM
- 40 views
Rutgers Findings May Predict the Future of Coral Reefs in a Changing World
by Perikis Livas in Tracing Knowledge
Study is first to pinpoint how coral make their mineral skeletons; process also works in more acidic water
(further reading and links)... Read more »
Carl Blesch. (2013) Rutgers Findings May Predict the Future of Coral Reefs in a Changing World. Rutgers Today. info:/
- June 11, 2013
- 10:18 AM
- 44 views
Unfrozen mystery: H2O reveals a new secret
by Perikis Livas in Tracing Knowledge
Using revolutionary new techniques, a team led by Carnegie’s Malcolm Guthrie has made a striking discovery about how ice behaves under pressure, changing ideas that date back almost 50 years. Their findings could alter our understanding of how the water molecule responds to conditions found deep within planets and could have implications for energy science. ... Read more »
Carnegie news office. (2013) Unfrozen mystery: H2O reveals a new secret. Carnegie Institution for Science. info:/
- June 11, 2013
- 08:37 AM
- 55 views
Mysterious Underwater Structure Discovered in Israel
by Anouk Vleugels in United Academics
Researchers stumbled upon the cone-shaped monument, that weighs about 60,000 ton, while executing geophysical research in the southern Sea of Galilee.
Expected is that the structure was built 6000 years ago. According to Prof. Shmulik Marco, who took part in the research, this is an impressive accomplishment since the stones had to be carried more than a mile – and be arranged according to a specific plan.... Read more »
Paz, Y., Moshe, R., Zvi, B., Shmuel, M., Tibor, G., & Nadel, D. (2013) A Submerged Monumental Structure in the Sea of Galilee, Israel. International Journal of Nautical Archaeology, 42(1), 189-193. DOI: 10.1111/1095-9270.12005
- June 10, 2013
- 06:49 PM
- 52 views
Double-blind peer review at Nature Geoscience
by Joerg Heber in All That Matters
The purpose of the editorial process at scientific journals is to select the papers that fit the editorial scope of the journal, and – within the limited means of the review scheme – try to make sure that published papers are technically correct and a fair representation of the scientific results presented. For most modern […]... Read more »
Editorial. (2013) Double-blind peer review. Nature Geoscience, 6(6), 413-413. DOI: 10.1038/ngeo1853
Editorial. (2012) Feedback received. Nature Geoscience, 5(9), 585-585. DOI: 10.1038/ngeo1575
- June 8, 2013
- 04:56 AM
- 55 views
Historical sea voyage sends manmade warming signal
by Andy Extance in Simple Climate
Will Hobbs from the University of Tasmania and NASA’s Joshua Willis have confirmed that ocean warming calculated from data collected by the HMS Challenger between 1873–1876 couldn’t realistically be from natural variability alone, pointing strongly to humanity's role. ... Read more »
Roemmich, D., John Gould, W., & Gilson, J. (2012) 135 years of global ocean warming between the Challenger expedition and the Argo Programme. Nature Climate Change, 2(6), 425-428. DOI: 10.1038/nclimate1461
Hobbs, W., & Willis, J. (2013) Detection of an observed 135 year ocean temperature change from limited data. Geophysical Research Letters. DOI: 10.1002/grl.50370
- June 7, 2013
- 08:38 PM
- 60 views
I’m sure you remember cold fusion, but do you remember gamma ray producing clouds?
by Greg Laden in Greg Laden's Blog
Cold Fusion was first reported in 1989. The original experiment was supposed to have produced extra heat that could not be explained wiht chemistry or electronics, so naturally, fusion was considered. Contrary to popular belief, that original experiment has been replicated successfully. The problem isn’t that the first experiment produced actual extra heat and no…... Read more »
Østgaard, N., Gjesteland, T., Carlson, B., Collier, A., Cummer, S., Lu, G., & Christian, H. (2013) Simultaneous observations of optical lightning and terrestrial gamma ray flash from space. Geophysical Research Letters. DOI: 10.1002/grl.50466
- June 6, 2013
- 07:34 PM
- 56 views
Thule on My Mind: Deep Water Port and Air Force Base
by Andreas Muenchow in Icy Seas
I am an air force brat. My father and my father-in-law enlisted in the German and US Air Forces, respectively. They served during the Cold War when I was born in 1961 a few month after the Berlin Wall went … Continue reading →... Read more »
Elwood, N.J. and J.W. Gaithwaite. (2007) Perpetuating a Pier. Civil Engineering, 77(5), 62-67. info:/
- June 6, 2013
- 10:50 AM
- 47 views
The Science of Melting Ice Sheets: New review in Nature
by Greg Laden in Greg Laden's Blog
A paper came out in today’s Nature about glacial melting and its contribution to sea level rise. This paper does not present new research, but rather summarizes and evaluates the last several years of research on modeling and measuring contiental glaciers and their dynamics. From the Abstract: Since the 2007 Intergovernmental Panel on Climate Change…... Read more »
Hanna, E., Navarro, F., Pattyn, F., Domingues, C., Fettweis, X., Ivins, E., Nicholls, R., Ritz, C., Smith, B., Tulaczyk, S.... (2013) Ice-sheet mass balance and climate change. Nature, 498(7452), 51-59. DOI: 10.1038/nature12238
- June 5, 2013
- 02:47 PM
- 37 views
Telling stories about Irish Geology
by Metageologist in Metageologist
I clearly remember the most important moment of my geological career. I was resting my back on a glacially-polished wall of gabbro, my feet in an Irish bog, talking to myself in the sunshine. As a young man with bushy hair … Continue reading →... Read more »
ROGERS, G., DEMPSTER, T., BLUCK, B., & TANNER, P. (1989) A high precision U-Pb age for the Ben Vuirich granite: implications for the evolution of the Scottish Dalradian Supergroup. Journal of the Geological Society, 146(5), 789-798. DOI: 10.1144/gsjgs.146.5.0789
TANNER, P., & LESLIE, A. (1994) A pre-D2 age for the 590 Ma Ben Vuirich Granite in the Dalradian of Scotland. Journal of the Geological Society, 151(2), 209-212. DOI: 10.1144/gsjgs.151.2.0209
WELLINGS, S. (1998) Timing of deformation associated with the syn-tectonic Dawros Currywongaun Doughruagh Complex, NW Connemara, western Ireland. Journal of the Geological Society, 155(1), 25-37. DOI: 10.1144/gsjgs.155.1.0025
Friedrich, A., Bowring, S., Martin, M., & Hodges, K. (1999) Short-lived continental magmatic arc at Connemara, western Irish Caledonides: Implications for the age of the Grampian orogeny. Geology, 27(1), 27. DOI: 10.1130/0091-7613(1999)0272.3.CO;2
- June 4, 2013
- 03:07 PM
- 77 views
Seeing Through The Clouds
by Michael Angus in Anthroblogenic Warning
Before I write this blog, I should make a confession; declare a bias, if we're going to speak lingua-climate. I find the branch of the natural sciences dealing with predicting future climate changes to be pretty endlessly fascinating. That we even try to predict a system as complex as the natural world with a bunch of equations is, to me at least, the perfect example of the hopeless search for an explanation which is everything that science should be about. In the early 60s, the natural scientis........ Read more »
Stevens, B., & Bony, S. (2013) What Are Climate Models Missing?. Science, 340(6136), 1053-1054. DOI: 10.1126/science.1237554
- June 4, 2013
- 11:32 AM
- 50 views
Linking Weather Extremes to Global Warming
by Greg Laden in Greg Laden's Blog
Global Warming is the increase in the Earth’s temperature owing to the greenhouse effects of the release of CO2 and other gasses into the atmosphere, mainly by humans burning fossil fuel, but also by the release of Methane from oil wells and melting of Arctic permafrost, natural gas from leaky pipes, and so on. This…... Read more »
Petoukhov, V., Rahmstorf, S., Petri, S., & Schellnhuber, H. (2013) Quasiresonant amplification of planetary waves and recent Northern Hemisphere weather extremes. Proceedings of the National Academy of Sciences, 110(14), 5336-5341. DOI: 10.1073/pnas.1222000110
- June 1, 2013
- 07:38 AM
- 57 views
Lifting the fog of war and climate
by Andy Extance in Simple Climate
Guy Callendar’s knowledge of climate and heat let him help devise a system to clear fog from British airfields during World War Two, and do detailed measurements on gases in the air that established how important CO2 is in driving climate change.... Read more »
Callendar, G. (1938) The artificial production of carbon dioxide and its influence on temperature. Quarterly Journal of the Royal Meteorological Society, 64(275), 223-240. DOI: 10.1002/qj.49706427503
Callendar, G. (1941) Infra-red absorption by carbon dioxide, with special reference to atmospheric radiation. Quarterly Journal of the Royal Meteorological Society, 67(291), 263-275. DOI: 10.1002/qj.49706729105
Sutherland, G., & Callendar, G. (1942) The infra-red spectra of atmospheric gases other than water vapour. Reports on Progress in Physics, 9(1), 18-28. DOI: 10.1088/0034-4885/9/1/304
Callendar, G. (1949) CAN CARBON DIOXIDE INFLUENCE CLIMATE?. Weather, 4(10), 310-314. DOI: 10.1002/j.1477-8696.1949.tb00952.x
Callendar, G. (1961) Temperature fluctuations and trends over the earth. Quarterly Journal of the Royal Meteorological Society, 87(371), 1-12. DOI: 10.1002/qj.49708737102
- May 31, 2013
- 07:31 AM
- 73 views
An answer to a lunar mystery
by Perikis Livas in Tracing Knowledge
Ever since the first satellites were sent to the moon to scout landing sites for Apollo astronauts, scientists have noticed a peculiar phenomenon: As these probes orbited the moon, passing over certain craters and impact basins, they periodically veered off course, plummeting toward the lunar surface before pulling back up.... Read more »
Jennifer Chu. (2013) An answer to a lunar mystery: Why is the moon’s gravity so uneven?. MIT News Office. info:/
- May 31, 2013
- 03:58 AM
- 44 views
Dolphins Threatened By US Military in Guam
by Mark Fonseca Rendeiro in United Academics
Spinner dolphins are beloved for their long noses and ability to make spinning leaps out of the water . They have also traditionally been threatened by human activity, including tuna fishing in the middle of the 20th century. Although today there is much more understanding and awareness regarding the importance of preserving dolphin populations around the world, species like the spinner are still at high risk of being harmed by human activity.
The island of Guam in the Pacific Ocean is a te........ Read more »
McNulty, R. (2013) Marine Mammal Monitoring on Guam. Oregon Undergraduate Research Journal, 4(1). DOI: 10.5399/uo/ourj.4.1.3161
- May 25, 2013
- 05:36 AM
- 95 views
The well-qualified amateur who threw the spotlight back on CO2
by Andy Extance in Simple Climate
75 years ago Guy Callendar revealed calculations and temperature measurements linking rising 20th century temperatures to burning fossil fuels, helping to lay the foundations for understanding the global warming that is still ongoing today.... Read more »
Callendar, G. (1938) The artificial production of carbon dioxide and its influence on temperature. Quarterly Journal of the Royal Meteorological Society, 64(275), 223-240. DOI: 10.1002/qj.49706427503
Ed Hawkins and Phil D. Jones. (2013) On increasing global temperatures: 75 years after Callendar. Quarterly Journal of the Royal Meteorological Society. info:/
- May 20, 2013
- 11:14 PM
- 72 views
Dosage: one space mirror per year. Some side effects may occur.
by Michael Angus in Anthroblogenic Warning
Something small has gone wrong in your home. Maybe a light bulb has gone out, or the tap has started leaking at the hinge. You can't fix it right now, because you're half way through watching nineties classic "Home Alone 2: Lost in New York". Or maybe "Game of Thrones". Whatever, I don't keep up with TV. The point is you need a quick fix, so you grab a lamp from the bedroom or stick a towel under the sink. That'll do, you think. I'll sort it out properly tomorrow. Future me totally has this one ........ Read more »
Vaughan, N., & Lenton, T. (2011) A review of climate geoengineering proposals. Climatic Change, 109(3-4), 745-790. DOI: 10.1007/s10584-011-0027-7
- May 20, 2013
- 04:09 PM
- 77 views
Earth’s centre is out of sync
by Perikis Livas in Tracing Knowledge
We all know that the Earth rotates beneath our feet, but new research from ANU has revealed that the centre of the Earth is out of sync with the rest of the planet, frequently speeding up and slowing down.... Read more »
ANU News. (2013) Earth’s centre is out of sync. Australian National University. info:/
- May 19, 2013
- 03:48 PM
- 64 views
A deeper look at the geology of diamonds
by Metageologist in Metageologist
The geology of diamonds is fascinating in itself, but they also give insights into wider geological processes and history. Up until 1725, diamonds were only known from India. That all changed when Brazilians panning river sediments for gold, instead found diamonds. Recent … Continue reading →... Read more »
Harte, B., & Richardson, S. (2012) Mineral inclusions in diamonds track the evolution of a Mesozoic subducted slab beneath West Gondwanaland. Gondwana Research, 21(1), 236-245. DOI: 10.1016/j.gr.2011.07.001
Harte, B., & Cayzer, N. (2007) Decompression and unmixing of crystals included in diamonds from the mantle transition zone. Physics and Chemistry of Minerals, 34(9), 647-656. DOI: 10.1007/s00269-007-0178-2
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