Detection of subsurface structures by means of gravity method can be used to determine mass distribution and density contrast of rock units. This distribution could be detected by different geophysical methods, especially gravity method. However, gravity techniques have some drawbacks and can't be always successful in distinguishing subsurface structures. Performance of the gravity technique co...

The cataclysmic 18 May 1980 eruption at Mount St. Helens was preceded by intense seismic activity marking the mechanical response of the volcanic edifice to interior pressurisation. This seismicity is analysed to yield the temporal change in the seismic scaling exponent, D, inferred from the seismic b-value, that in-turn is related to the seismic moment of an earthquake. Time evolution of D pre...

A Workshop to develop a “Decision Framework for Seismic Survey Referrals” held in March 2003 produced an inventory of ecological factors that DFO should consider when dealing with referrals for seismic surveys in Canadian waters. The workshop also discussed the sources of uncertainty about effects of seismic sounds on those ecological factors, and ways that the uncertainty could be presented in...

Acquisition design plays a very significant role in seismic exploration and data processing. An optimized seismic acquisition design will require less resources and therefore, it can reduce the total cost of seismic exploration. Nevertheless, finding the optimal locations of sources and receivers in a seismic survey is a long-standing problem which has received less attraction in last few decad...

background: in 30 to 40% of patients with type 2 diabetes mellitus (t2dm) nephropathy is developed. the aim of the present study was to find the synergistic effect of two polymorphisms of methylenetetrahydrofolate reductase (mthfr) c677t and angiotensin converting enzyme insertion/ deletion (ace i/d) polymorphism on the risk of diabetic nephropathy and its progression. methods:   in a case-cont...

Disparities between fold amplitude (A) and intrusion thickness (Hsill) are critical in identifying elastic or inelastic deformation a forced fold. However, accurate measurements of these two parameters challenging because the limit separability detectability seismic data. We combined wireline data 3-D from TZ-47 exploring area Tarim Basin, Northwest China, to accurately constrain total sills th...