Have you used a new facial product, soap, detergent, etc.? I have gotten a very similar rash, and on occassion, I can determine what new product I have used that caused it.
No, maybe an ingrown hair or an abscess.
The antegonial notch is the depression along the jawline. To feel for the antegonial notch, place your thumb under your ear and against the back of your jaw. Slide your thumb along the border of the jaw as if tracing the jawline from your ear to your chin. Your thumb will slide down the back of the jawline (mandible), then turn a corner at the angle of the jaw. Just in front of this angle, your thumb will feel a slight depression; this is the antegonial notch (easier to see on a picture than it is to describe).
along plate boundaries
Arenal and El CHichhon
yes
rift valley
rift valley
Both subduction zones and spreading centers.
rift valley
yes
This deformation of the jawline and gums could be the result of a cyst. Cysts sometimes form along bones after extreme trauma.
In sea-floor spreading,the sea floor spreads apart along both sides of the mid-ocean ridge as a new crust is added.As a result,the ocean floors move like conveyor belts,carrying the continents along with them.