A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.However, by itself a fossil has little meaning unless it is placed within some context.Rhyolitic magmas tend to have even higher viscosity, ranging between 1 million and 100 million times more viscous than water.(Note that solids, even though they appear solid have a viscosity, but it very high, measured as trillions time the viscosity of water).Viscosity is an important property in determining the eruptive behavior of magmas.The Products of Volcanic Eruptions Lava Flows When magma reaches the surface of the earth, it is called lava.Baengnokdam, the crater, and lake in it are located at the peak of Hallasan, which was formed over 25,000 years ago.Jeju is scientifically valuable for its extensive system of lava tubes (also known as lateral volcanoes or in Korean as Oreum).
Thus, basaltic magmas tend to be fairly fluid (low viscosity), but their viscosity is still 10,000 to 100,0000 times more viscous than water.
Though relative dating can only determine the sequential order in which a series of events occurred, not when they occur, it remains a useful technique especially in radiometric dating.
Relative dating by biostratigraphy is the preferred method in paleontology, and is in some respects more accurate (Stanley, 167–69).
Pyroclastic Material If the magma has high gas content and high viscosity, the gas will expand in an explosive fashion and break the liquid into clots that fly through the air and cool along their path through the atmosphere.
Alternatively it blast out solid pieces of rock that once formed the volcanic edifice.