Rock strata reveal changes. Some strata in a particular region might contain shallow sea organisms, overlain by strata containing deep sea organisms, and these in turned are overlaid by strata that are clearly aeolian (wind) deposits.
Varying fossil compositions in overlaying sedimentary strata also indicate changes over vast stretches of time. In the John Day Fossil beds in Oregon, we can trace climate changes over millions of years.
I'm not really certain what is meant by "geologic evolution." Evolution typically refers to biological evolution, although astronomers use the word "evolution" to describe the life cycle of stars. I don't recall "evolution" being used to describe geologic processes in any geology course I took.
I am a geologist and I know of no theory of "geologic evolution". "Evolution" as defined by Darwin describes the origin of species based on the survival of the fittest. This certainly can not be applied to geological processes, although life is integral to geology.
Evolution has been influenced by geologic changes on Earth through environmental shifts such as continental drift, climate variations, and the formation of new habitats. These changes have created selective pressures that have shaped the course of evolution by promoting the survival of certain species and driving adaptation to new conditions.
Support for Wagner's hypothesis of continental drift includes evidence of fossil records, matching coastlines and geologic formations across continents, and the distribution of certain species that suggest connected landmasses in the past. These pieces of evidence helped bolster the idea that continents were once joined together and have since drifted apart.
The abundant fossil evidence appeared in the geologic record around 541 million years ago during the Cambrian period when complex organisms started to evolve. This sudden appearance of diverse life forms is known as the Cambrian explosion.
The geologic time scale provides a framework for understanding the timing of events in Earth's history, including when different life forms existed. This temporal context is crucial for studying evolution because it allows scientists to track the emergence and diversification of species over millions of years. By correlating the geologic time scale with the fossil record, researchers can infer evolutionary relationships and patterns of biological change.
I am a geologist and I know of no theory of "geologic evolution". "Evolution" as defined by Darwin describes the origin of species based on the survival of the fittest. This certainly can not be applied to geological processes, although life is integral to geology.
hard core
Molecular genetics
The theory predicts that evolution will happen and in certain ways. The observed evolution makes this prediction correct. It also defines evolution as happening, and as such is perfect evidence in support of it.
geologic colums
There is strong support for the theory of evolution due to fossils that have been found by archeologists. The fossil records show evidence of evolution over billions of years.
I do not so much " believe it " as I an convinced by the myriad lines of converging evidences that support the theory of evolution by natural selection. talkorigins.org
Fossil records, anatomical similarities among different species, and the observation of natural selection in action were some of the key pieces of evidence used to support the idea of evolution when it was first proposed.
Yes. Evolution ocurred in all geologic periods.
Evidence for evolution includes the fossil record, comparative anatomy, molecular biology, and observed instances of natural selection. These different lines of evidence all support the concept of biological evolution occurring over time.
The geologic time scale provides a framework for understanding the sequence of events in Earth's history, allowing scientists to study the fossil record and track the evolution of organisms over millions of years. By correlating the age of rocks with the appearance of different species in the fossil record, the geologic time scale helps support the idea of gradual change and common ancestry proposed by the theory of evolution.
Fossil evidence, such as transitional forms showing intermediate characteristics between species, and genetic evidence, like similarities in DNA sequences among related species, both support the occurrence of evolution.