Monday, June 16, 2008

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The problem of the width and shape of the oil fields developed in a subduction zone

As we have seen, there are only two or three fields of oil or gas from a subduction zone, then there should be many more. But in addition, two or three fields are not unique width and shape they should have.

Indeed, given the conditions of formation of oil fields from a subduction zone should have a width and a particular form.

Such a field should have a width very low. Since oil is formed over a wide area of less than one kilometer, the resulting field should have a width that should not be so much more than that (1 km). Maybe it could do 2 or 3 kilometers, taking into account the dispersion of the liquid during ascent. But not so much. While in terms of length, it can be very long, since the phenomenon of accumulation should occur along the coast (but, as we have seen, there are almost no oil on subduction zones). And therefore the field should have a width very small compared to its length.

So the width should not exceed 2 or 3 km. And the field should have a very elongated shape.

So one wonders how it is that the fields from a subduction zone that we present are hundreds of kilometers wide and have a distribution whose form is more of a round or that the square of the thin strip.

Then, of course, you could reply that the oil slick would spread by capillary action in the area where it accumulates, thus extending further than where it was during ascent.

But already, it would mean that the field could scatter to disappear. So it is not so much. And then, over tens of millions of years of dispersion, the field would extend over thousands of kilometers.

Then, the extension should be done by capillary faster than the advance plate . It is not impossible. But as we can possibly understand that this is the case when oil rises (although it is not sure why it should go up because oil is caught in the rock). But once back, a priori, the capillary action should be much slower than the advance of the plate. And so, since is trapped in the plate tectonics, the oil should stay on the point of subduction. And should therefore be left with a field that would have the form described at the outset, namely a very elongated shape with a width of only 2 or 3 miles.

And even if oil reached to extend the maritime side of the plate, he could not extend the land side. This is because of this side, it makes sense to have the magma. So the oil would be burned by the magma. Suddenly, the field should only extend the maritime side. And so it should be a form of semicircle . But we not observed fields of such a form. So even this argument for the extension capillary does not.

In fact, it should not even be in the form of a semicircle. Because he does not forget that the plate moves towards the plate maritime land. So, given that oil would extend from the point of subduction, oil from the sides should have a velocity towards the sea less than oil is exactly the reverse movement of plate tectonics. It's like trying to swim upstream in a river. If it goes in exactly the reverse of the current, we will swim upstream faster (and therefore later in time given) that if we go back at an angle. There the oil going in exactly the opposite direction of movement of plate tectonics will go further than oil from an angle. So we should end up with a field that is the form of a 3 leaf clover , if oil goes through that still manages to move faster toward the sea as the plate tectonics moving forward towards the ground ; or with a field having a starting point towards the sea, a field in a T what, if oil from the sides is pushed toward the subduction zone. But obviously, none of the very few fields in this subduction zone has this form.

In short, another argument against the theory biotic.

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