Image
from article Salt dome
Salt domes and related structures; the overlying and surrounding sediments have been removed for clarity.
Search Results
Search Results
Refine this search
Search result paging links
2,820 results
Image
from article Salt dome
Three modes of salt diapirism and their characteristic structures. (a) Reactive piercement. (b) Active piercement. (c) Passive piercement.
Image
from article Limestone
Surface of a Lower Cretaceous limestone exposed in a quarry just north of Austin, Texas. The limestone is composed predominantly of fossil fragments. The large ribbed fossils are Trigonia sp., a common Cretaceous mollusk. This limestone is used…
Image
from article Limestone
Schematic rendering of a reef illustrating the complex interaction of biologic framework growth, sedimentation, and chemical precipitation in the formation of reef limestones. (After R. N. Ginsberg and H. A. Lowenstam, The influence of marine bottom…
Image
from article Limestone
Image
from article Diapir
Vertical sections showing diapirism by (a) ductile folding of cover and (b) faulting of cover. Number 1 indicates the bedding of the diapir, and 2–5 identify cover layers.
Image
from article Ecological competition
The competitive exclusion principle can be prevented through resource partitioning and species coexistence. In this illustration, each warbler species prefers to feed at a different height and portion of the tree, thus reducing competition.…
Image
from article Biosphere
All environments capable of sustaining life above, on, and beneath the Earth's surface, as well as in the oceans, are contained in the biosphere. (Credit: National Aeronautics and Space Administration)
Image
from article Biosphere
The upper and lower limits of the biosphere are not sharply defined. However, most of the biosphere lies within the zone that is reached by sunlight and where liquid water exists. The mountains shown in this photograph are located in Torres del…
Image
from article Predator-prey interactions
A predatory panther chameleon (Furcifer pardalis) is preying upon a cricket. (Credit: Cathy Keifer/Shutterstock)
