Out of Context Tracers in the Sea
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Out of Context Tracers in the Sea
@tracers-in-the-sea.bsky.social
I am a good bot posting excerpts from the seminal text by W.S. Broecker and T-H Peng for you. Many oceanographers started their journey of ocean discovery with this text
🌊🧪 Upon total depletion of N and P only 131 (13 percent) of the 1000 C atoms originally present in deep sea water are used to form organic tissue and CaCO3. - Broecker and Peng (1982), Tracers in the Sea
November 27, 2025 at 6:56 PM
🌊🧪 Thus, at this point, the worms appear to have the upper hand. If each year worm nudges were to lift a nodule 3 microns, then in a million years it would be raised by the required 3 meters! Unfortunately, we have no worm nudge tracers. So the puzzle remains an annoyance to those who study
November 27, 2025 at 6:57 AM
🌊🧪 The sea is a way station for the products of continental erosion. - Broecker and Peng (1982), Tracers in the Sea
November 26, 2025 at 6:55 PM
🌊🧪 Having made note of the artifacts of his forefathers' arrival, he ponders the number of bodies he uncovered during his digging. He correctly calculates that, as his trench covers 0.1% of the area of the colony, 10 people should on an average be living within its bounds at any one time. The
November 26, 2025 at 6:57 AM
🌊🧪 Others show very large changes in concentration from place to place. - Broecker and Peng (1982), Tracers in the Sea
November 25, 2025 at 6:56 PM
🌊🧪 The differences in the vertical and horizontal distributions of these constituents are the result of differences in the depth to which the various particulate phases fall before being returned to solution. Some of these species are totally depleted in warm surface water; others are only
November 25, 2025 at 6:57 AM
🌊🧪 All plants and animals produce organic tissue. - Broecker and Peng (1982), Tracers in the Sea
November 24, 2025 at 6:56 PM
🌊🧪 For every atom of P in the deep ocean there are about 50 atoms of Si. - Broecker and Peng (1982), Tracers in the Sea
November 24, 2025 at 6:57 AM
🌊🧪 DISTRIBUTION OF OPAL PRODUCTION - The abundance pattern of opal in deep-sea sediments is closely related to the pattern of productivity of diatoms and radiolarians in the overlying waters. As shown in Figure 2-2, high opal contents are found around the perimeter of the Antarctic continent,
November 23, 2025 at 6:55 PM
🌊🧪 The belts and escalators represent the organized flow of water, and the wandering of the people is the turbulent mixing superimposed on this organized flow. Although not perfect, this analogy does capture the important factors influencing the distribution of nutrients in the sea. -
November 23, 2025 at 6:57 AM
🌊🧪 The approximate ratios of these same elements dissolved in deep sea water are 15 atoms of N and 1000 atoms of C for every atom of P. - Broecker and Peng (1982), Tracers in the Sea
November 22, 2025 at 6:56 PM
🌊🧪 As chemical oceanographers, we wander through the plant measuring inputs, outputs, and internal compositions - trying to reconstruct the missing design. - Broecker and Peng (1982), Tracers in the Sea
November 22, 2025 at 6:57 AM
🌊🧪 They constitute the sea's salt. - Broecker and Peng (1982), Tracers in the Sea
November 21, 2025 at 6:56 PM
🌊🧪 Roughly, 90% of the organic matter eaten by animals is consumed in the production of energy. - Broecker and Peng (1982), Tracers in the Sea
November 21, 2025 at 6:57 AM
🌊🧪 Since surface-dwelling organisms use essentially all the available silica, we can add the appropriate amount of opal to the debris. - Broecker and Peng (1982), Tracers in the Sea
November 20, 2025 at 6:55 PM
🌊🧪 In this connection, we can point back to Figure 1-18, which shows the distribution of NO₃ and H₄SiO₄ in high-latitude surface waters. It is clear from these distributions that silicate is depleted from the water before nitrate (i.e., high concentrations of nitrate extend much further
November 20, 2025 at 6:57 AM
🌊🧪 Of great interest to us are those substances that dissolve during erosion and are carried to the sea in ionic form. - Broecker and Peng (1982), Tracers in the Sea
November 19, 2025 at 6:55 PM
🌊🧪 Calcium, although even more abundant in river water than sodium, is an important ingredient in the shells of marine organisms. - Broecker and Peng (1982), Tracers in the Sea
November 19, 2025 at 6:57 AM
🌊🧪 It enters the eastern Atlantic through a break in the Mid-Atlantic Ridge located close to the equator. It enters the Antarctic through the southern end of the western basin of the South Atlantic and joins the eastward floWing circumpolar current. Part of the water in this circumpolar
November 18, 2025 at 6:56 PM
🌊🧪 All deep water was once at the sea surface. When this water lost contact with the atmosphere, it carried with it a near equilibrium amount of each atmospheric gas. So when we examine deep sea water, we would expect the content of its gases (except CO2, O2, He and, of course, Rn) to be
November 18, 2025 at 6:57 AM
🌊🧪 The mid-ocean ridges would rise above the surface and would divide the Atlantic into two separate oceans, the Indian Ocean would be divided into a series of basins, and the Pacific into a major and a minor basin. The continents would be larger and the oceans smaller. Hence, the shapes of
November 17, 2025 at 6:55 PM
🌊🧪 Having made note of the artifacts of his forefathers' arrival, he ponders the number of bodies he uncovered during his digging. He correctly calculates that, as his trench covers 0.1% of the area of the colony, 10 people should on an average be living within its bounds at any one time. The
November 17, 2025 at 6:57 AM
🌊🧪 This type of profile characterizes the Pacific and Indian Oceans (to about 40°S). In the Antarctic Ocean, the profiles show much less structure. In the Atlantic, the concentrations of these constituents increase all the way to the bottom. - Broecker and Peng (1982), Tracers in the Sea
November 16, 2025 at 6:55 PM
🌊🧪 Deep water masses are richer in the constituents utilized by plants than surface water is. - Broecker and Peng (1982), Tracers in the Sea
November 16, 2025 at 6:57 AM
🌊🧪 He needs only to measure the water temperature, the water pressure and one major property of sea salt to make a very accurate estimate of the in situ density of a given sample of sea water. - Broecker and Peng (1982), Tracers in the Sea
November 15, 2025 at 6:56 PM