Eating a potassium-rich diet and staying hydrated can help maintain good fluid balance. Interestingly, studies show that a potassium-rich diet may help prevent osteoporosis by reducing how much calcium the body loses through urine , ,. Earth and Planetary Science Letters 1969; 6: 47—55. In addition to shocked quartz grains and high concentrations of iridium, the K-T impact produced tektites, which are small glass spherules that form from rock that is instantaneously melted by a large impact. This article provides a detailed review of potassium and what it does for your health. The fallout from this enormous impact, including shocked quartz and high concentrations of the element iridium, has been found in sedimentary rocks at more than 100 locations worldwide at the precise stratigraphic location of the Cretaceous-Tertiary K-T boundary Alvarez and Asaro 1990; Alvarez 1998. Similarly, in a 12-year study in 91,731 women, scientists found that those who consumed the most potassium daily had a 35% lower risk of kidney stones.
Under normal conditions, the osmolality is the same inside and outside your cells. Most health authorities suggest getting 3,500—4,700 mg of potassium daily. The number of electrolytes relative to the amount of fluid is called osmolality. The Pierre Shale also contains volcanic ash that was erupted from volcanoes and then fell into the sea, where it was preserved as thin beds. Studies suggest that a high potassium intake can help by increasing urine production and reducing sodium levels , ,. With these assumptions the geologist only needs to measure the relative amounts of potassium-40 and argon-40 in the rock at the present time to be able to calculate an age for the rock.
The results from all of the laboratories were remarkably consistent with the measured ages ranging only from 64. Other creationists have focused on instances in which radiometric dating seems to yield incorrect results. Both low and high blood levels can affect nerve impulses by altering the voltage of nerve cells ,. Proceedings of the Fourth International Conference on CreationismPittsburgh: Creation Science Fellowship, 1998. Historically, potassium has been used to treat water retention.
Poor fluid balance can lead to , which in turn affects the heart and kidneys. The Ages of Meteorites Meteorites, most of which are fragments of asteroids, are very interesting objects to study because they provide important evidence about the age, composition, and history of the early solar system. In many countries, food authorities limit potassium in over-the-counter supplements to 99 mg, which is much less than the amount you can get from just one serving of the potassium-rich whole foods above. If the rock actually contained some argon-40 when it solidified then the calculated age would be too old. For example, after extensive testing over many years, it was concluded that uranium-helium dating is highly unreliable because the small helium atom diffuses easily out of minerals over geologic time. This pretty much eliminates any significant laboratory biases or any major analytical mistakes.
At most it may have modified the framework a little. Summary: Potassium levels have a significant effect on muscle contractions. In an analysis of 33 studies including 128,644 participants, scientists found that people who ate the most potassium had a 24% lower risk of stroke than people who ate the least. A reply to scientific creationism. This means that the geologist can plausibly assume that all argon gas escapes from the molten magma while it is still liquid. First, it provides no evidence whatsoever to support their claim that the earth is very young. In the case of St Severin, for example, we have 4 different natural clocks actually 5, for the Pb-Pb method involves 2 different radioactive uranium isotopes , each running at a different rate and each using elements that respond to chemical and physical conditions in much different ways.
There are three important things to note about these results. In this case the method is again salvaged by changing his assumptions about the past. Once inside your body, it functions as an electrolyte. Others are from larger asteroids that got hot enough to melt and send lava flows to the surface. If the earth were only 6000—10 000 years old, then surely there should be some scientific evidence to confirm that hypothesis; yet the creationists have produced not a shred of it so far. Isotopic composition of argon in modern surface volcanic rocks.
Radiometric dating of rocks and minerals using naturally occurring, long-lived radioactive isotopes is troublesome for young-earth creationists because the techniques have provided overwhelming evidence of the antiquity of the earth and life. No — it is the result of extremely careful analyses using a technique that works. Usually determinations of age are repeated to avoid laboratory errors, are obtained on more than one rock unit or more than one mineral from a rock unit in order to provide a cross-check, or are evaluated using other geologic information that can be used to test and corroborate the radiometric ages. Scientists who use radiometric dating typically use every means at their disposal to check, recheck, and verify their results, and the more important the results the more they are apt to be checked and rechecked by others. There are several important things to note about these results.
Altered levels can cause muscle weakness, and in the heart, they may cause an irregular heartbeat. In this case the geologist assumes that everything went well, and he publishes his result as the crystallization age of the rock. Summary: Potassium deficiencies or excess rarely occur through the diet. Similar tektites were also found in Mexico, and the Berkeley lab found that they were the same age as the Haiti tektites. A few verified examples of incorrect radiometric ages are simply insufficient to prove that radiometric dating is invalid.
And he hopes the rock has remained sealed until the time he collected his sample. The boundary between these periods the K-T boundary is marked by an abrupt change in fossils found in sedimentary rocks worldwide. The first is that each meteorite was dated by more than one laboratory — Allende by 2 laboratories, Guarena by 2 laboratories, and St Severin by four laboratories. Some meteorites, because of their mineralogy, can be dated by more than one radiometric dating technique, which provides scientists with a powerful check of the validity of the results. A potassium-rich diet may by helping the body remove excess sodium.
High sodium levels can elevate blood pressure, especially for people whose blood pressure is already high. Calcium is a common mineral in kidney stones, and several studies show that potassium citrate lowers calcium levels in urine ,. Thus any potential error due to excess 40Ar was eliminated by the use of this technique, which was not available when the studies by Dalrymple 1969 and Krummenacher 1970 were done. Geological Society of America Bulletin 1998; 110: 361—76. Your body uses this electricity to manage a variety of processes, including fluid balance, nerve signals and muscle contractions ,. Acknowledgments I thank Chris Stassen and 2 anonymous reviewers for their thoughtful comments, which led to important improvements in the manuscript. Even if against all odds they should succeed, it still would not prove that the Earth is young.