(2) the distribution trends of element content are that, Al, K, Fe, Mg, Cu, Co, Ni, Ba, Mn, Zn, Pb and N contents increase gradually from the outer continental shelf to the continental slope to the deep-sea;
The article discusses that the monitoring module taking C8051F020 microprocessor of Cygnal Company as the core,adopts SJA1000CAN controller of Siemens Company to realize the designing process of the deep-sea monitoring system based on CAN bus,and explains in detail around C8051F020 microprocessor and SJA1000 controller that monitoring system performance requiring,making up and hardware connect and software design.
Known as one of the most extreme and abrupt warming episodes since the midCretaceous, the PETM is characterized by a rapid ~5℃ increase in deep ocean, about 4 to 8℃ increase in surface ocean, and a prominent negative carbon isotope excursion of at least 3.0‰ in less than 10 ka.
It was shown that the distributions of the TA and Ca in the water mass of deep sea areas are determined by the processes of CaCO3 formation and dissolution according to the relation Δ Ca = 0.5 Δ TA (1).
Oil and gas (hereafter, petroleum) generation and accumulation are dictated by the optimum specifics of source and reservoir rocks accumulated under favorable conditions of rifts and deep-sea fans.
The analysis is based on the experimental data obtained in deep ocean with the use of two four-component combined hydroacoustic receivers positioned at depths of 150 and 300 m.
The computations show that, in the coastal region, the noise field is essentially anisotropic, and this anisotropy occurs not only in the vertical plane, which is characteristic of the deep ocean, but in the horizontal plane as well.
Data of experiments with single-path and multipath reception of broadband continuous pseudonoise acoustic signals (0.8-1.3 kHz) in a deep ocean are discussed.
Evidence from the deep-ocean record of bioturbated sediments suggests that there has been a Cold Deep Water component in ocean circulation for at least the last 90 million years (mid-Cretaceous onwards) and possibly throughout the Phanerozoic.
The water column was stratified during the period, with warm, low salinity water from the inner bay at the surface, and cold, high salinity, deep-ocean water below.