Are you good at science?

i need help with science. can u describe the words batholith, volcanic neck, dike, n sill? thanx if u do|||A batholith (from Greek bathos, depth + lithos, rock) is a large emplacement of igneous intrusive (also called plutonic) rock that forms from cooled magma deep in the earth's crust. Batholiths are almost always made mostly of felsic or intermediate rock-types, such as granite, quartz monzonite, or diorite





A volcanic neck is a cylindrical-shaped landform standing above the surface created by magma solidifying in the vent of a volcano. Erosion of the sides of the volcano exposes the neck.





A dike or dyke in geology is a type of sheet intrusion referring to any geologic body that cuts discordantly across





* planar wall rock structures, such as bedding or foliation


* massive rock formations, like igneous/magmatic intrusions and salt diapirs.





Dikes can therefore be either intrusive or sedimentary in origin.





In geology, a sill is a tabular pluton that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or even along the direction of foliation in metamorphic rock. The term sill is synonymous with concordant intrusive sheet. This means that the sill does not cut across preexisting rocks, in contrast to dikes, which do cut across older rocks.


Illustration showing the difference between a dike and a sill.





Sills are always parallel to beds (layers) of the surrounding country rock. Usually they are in a horizontal orientation, although tectonic processes can cause rotation of sills into near vertical orientations. They can be confused with solidified lava flows; however there are several differences between them. Intruded sills will show partial melting and incorporation of the surrounding country rock. On both the "upper" and "lower" contact surfaces of the country rock into which the sill has intruded, evidence of heating will be observed (contact metamorphism). Lava flows will show this evidence only on the lower side of the flow. In addition, lava flows will typically show evidence of vesicles (bubbles) where gases escaped into the atmosphere. Because sills generally form at depth (up to many kilometers), the pressure of overlying rock prevents this from happening much, if at all. Lava flows will also typically show evidence of weathering on their upper surface, whereas sills, if still covered by country rock, typically do not|||Yes, I'm good at science.





Want to know how? I did my OWN homework, I paid attention in class, I didn't expect others to do my work for me (that doesn't work at all on a real job anyway).





Your textbook or searching online for those words would give you information - the point of homework is to learn how to learn, not to get the answers from someone else.|||Yes, I am good at science - thank you for asking. And yes, if i felt so inclined, I could also define those terms for you. You are most welcome.





Have a nice day!