Mercury Accumulations

vii. Does the article fit into an existing theoretical framework? In other words, what theory (ies) does the article address that was discussed

Lutgens, F. K. & Tarbuck, E. J. (2011). Foundations of earth science (6th ed.). Upper Saddle River, NJ: Prentice

While liquid gold may be a modern allegory for something desirable, there is another liquid metal that is quite the opposite of desirable. Mercury is an unusual metal in that in its standard elemental form it is a liquid. Due to the increase in industry over the last 100 years, Mercury levels have risen, which cause serious damage to humans.

Lacustrine deposits at profiles 13-6 and 13-5, located within the maar crater near its eastern wall, occur at elevations of 1921.5 ± 0.2 m and 1919.4 ± 0.2 m, respectively. The profile 13-6 deposits are ~25 m higher than the modern lake level (1895.9 m) and ~10 m higher than highstand deposits at ~1911 m previously documented and radiocarbon dated by Bradbury (1967) on the northeast flank of the west cinder cone. The ~1921.5 m lacustrine deposits in the eastern part of the crater thus appear to represent the highest documented level of ZSL. Although Bradbury (1967:Figure 13) apparently also documented the same lacustrine highstand deposits as we did at profiles 13-5 and 13-6, it appears he mapped them ~50 m west (and downslope) of their actual location. We were able to more accurately plot their location and elevation using a

In a neoliberalist economy, a pluralist model of healthcare is adopted. Consequently, the high powers often “sing” while vulnerable populations are left with inequitable consideration for health 1. This is exemplified in arctic regions of Canada where health status is considerably lower compared to the Canadian population. In these regions, cultural, socioeconomic and difficulty in access create sizable barriers that require significant investment of human and capital resource to overcome. Not only is resource availability limited but also there are numerable negative health outcomes associated with long-range pollution transportation. Pollutants can travels thousands of kilometers through air and water currents that trend toward Arctic regions. Although there are numerous pollutants of concern, mercury is particularly noxious. Mercury is a heavy metal, d- block element understood to be a potent neurotoxin 2. In exposed populations, extensive neurotoxic effects are observed ranging from developmental delays to death. It is well known that individuals residing near mercury producing plants experience exposure well above the recommended guidelines 3. One such example is the Minimata disaster, which resulted in countless deaths and neurological impairments for the Japanese population 3.

WesternGeco L.L.C. v. ION Geophysical Corp., No. 2013-1527,2014-1121, -1526, -1528, 2015 U.S. App. LEXIS 11411 (Fed. Cir. Jul. 2, 2015) (Dyk, J.) (Wallach, J., dissenting). Click Here for a copy of the opinion.

OVERVIEW: For Part I of this two-part assignment you identified and summarized elements of a published scholarly article selected from the classroom Resources Folder. For Part 2, which is due by the end of Week 6, you will analyze, connect, and reflect on aspects of your selected article. Note that the words “succinct” and “thorough” repeat regularly in the instructions below. They will serve as reminders that this is a formal assignment and sentence

Atmospheric exposures come from volcanic eruptions, coal burning, and through mining, then the mercury goes through a cycle such as the nitrogen cycle and then settles into the ocean (Bernhoft 2011). As the mercury settles into the water the small creatures with the water, and people ingest the fish containing mercury and can cause major damage to people and pregnant women (Bernhoft 2011). Although exposure usually occurs with the atmospheric reasoning, but there are other parts of the human body that can be affected such as the kidneys, skin, breast etc. (Bernhoft 2011). However there are many different ways that mercury can be taken out of a person’s body, that being through urination, and many large amounts come out through sweat and saliva (Bernhoft

The disposal of high level radioactive waste (HLW) is a contentious issue that can have major environmental consequences. As such, the treatment of such waste is governed by strict guidelines and protocols. Deep geologic burial is often a solution that appears to satisfy requirements for safe disposal. Sites chosen as candidates for deep burial must keep the waste separate from the biosphere for at least 10,000 years. Infiltration of groundwater into a repository can greatly reduce the time taken for waste to appear at the surface, therefore careful consideration of past, present and future conditions is of great importance. This essay

"How Does Mercury Affect Human Health and the Environment?" How Does Mercury Affect Human Health and the Environment? EPA, 25 Aug. 2004. Web. 28 Aug. 2015. http://waste.supportportal.com/link/portal/23002/23023/Article/17228/How-does-mercury-affect-human-health-and-the-environment

Mercury's surface is very similar to that of our very own moon. Just like our moon, It has a dark grey, rocky surface. It is known to be quite porous and covered in many craters. It is strewn with quite a few boulders and lots of dust. Interestingly enough, the lunar-like surface layer only runs about 500-600 kilometers deep into the small planet, where it meets Mercury's iron-rich core. As far as sustaining life, Mercury is geologically dead, and according to research done over the course of years, it has been for quite some time. This is apparent from its barren landscape, and lack of weather patterns. Data shows no record of dust storms, clouds or any form of weather, reassuring us of its similarity to our Earth's moon.

Although studies on the impact of mercury pollution due to small-scale mining were already numerous, they were generally technical in nature. Few works touched on the economic aspects of the problem and did so only in a superficial and summary manner. So far, there is no available study that conducted an economic analysis in a more detailed and quantitative way in the Philippines or elsewhere.

The article describes briefly how the mercury ends up in the fish we eat, how the rain grabs the mercury from the atmosphere and deposits it into the lakes and oceans. Because of the food chain, the largest of the aquatic animals will have the highest amount of mercury, whales and sharks for example. So, communities high in whale and shark consumption will show the greatest risk of mercury poisoning.

My research primarily involves elucidating the effect of diagenetic recrystallization on metal isotopes (Mg, Ca, and Sr) in marine carbonates and evaluating their reliability as geochemical proxies to reconstruct the paleoclimatic conditions and chemical evolution of seawater through geologic period. Geochemical cycling of Mg on the earth’s surface involves transfer of Mg from continental rocks to the ocean followed by reincorporation of Mg into the lithosphere via hydrothermal exchange at the mid-oceanic ridges and through precipitation of carbonate minerals. Since the exogenic cycle of Mg is directly linked to the global carbon cycle it is invaluable for reconstructing the climatic variability (e.g. pCO2 and temperature). The Mg isotopic composition (δ26Mg) of seawater is useful to decouple long-term variability of Mg concentration and δ26Mg of the input and output fluxes to the ocean. The δ26Mg of marine carbonates is a promising proxy for seawater δ26Mg. However, diagenetic recrystallization of calcite, which is known to impact the trace elemental and isotopic composition of carbonates significantly, can complicate the carbonate-based geochemical proxy interpretation. Therefore, it is critical to quantify the diagenetic effect on the concentrations and isotopic composition of trace elements (e.g. Mg, Ca, Sr) in carbonates to facilitate accurate proxy reconstruction.

In recent years, technological advancement in analytical geochemistry has offered a new suite of non-traditional geochemical proxies developed from trace metals (e.g., Sr/Ca, Mg/Ca, Ba/Ca, B/Ca) (Lea and Spero, 1992, 1994; Nurnberg et al., 1996; Rosenthal et al., 1997; Lea et al., 1999; Lear et al., 2000; Martin et al., 2002; Billups and Schrag, 2003, 2004; Honisch and Hemming, 2004; Yu and Elderfield, 2007; Foster, 2008; Allen et al., 2009) and isotopic compositions (e.g., 87Sr/86Sr, δ11B, δ44/40Ca, and δ26Mg) of foraminiferal calcite (DePaolo and Ingram, 1985; De La Rocha and DePaolo, 2000; DePaolo, 2004; Fantle and DePaolo, 2005; Fantle, 2010; Hodell et al., 2007; Higgins and Schrag, 2012; Fantle and Tipper, 2014; Pogge von Strandmanss et al., 2014) that are complementary to the traditional foraminifera-based isotopic proxies. Moreover, the emerging metal isotopic proxies have potential to reconstruct past variability in seawater chemistry and thereby contribute strongly to understanding the long-term variation in metal cycling (e.g. Ca, Sr, Mg) that are directly linked to the global carbon cycle (Richter et al., 1992; Zhu and Macdougall, 1998; de La Rocha and DePaolo, 2000; Fantle and DePaolo, 2005; Hodell et al., 2007; Griffith et al., 2008; Higgins and Schrag, 2010; Higgins and Schrag, 2012, Fantle and Tipper, 2014; Pogge von Strandmanss et al., 2014). However, due to