The Radiometric Dating Game Radiometric dating methods estimate the age of rocks using calculations based on the decay rates of radioactive elements such as uranium, strontium, and potassium. On the surface, radiometric dating methods appear to give powerful support to the statement that life has existed on the earth for hundreds of millions, even billions, of years. We are told that these methods are accurate to a few percent, and that there are many different methods. We are told that of all the radiometric dates that are measured, only a few percent are anomalous. This gives us the impression that all but a small percentage of the dates computed by radiometric methods agree with the assumed ages of the rocks in which they are found, and that all of these various methods almost always give ages that agree with each other to within a few percentage points. Since there doesn’t seem to be any systematic error that could cause so many methods to agree with each other so often, it seems that there is no other rational conclusion than to accept these dates as accurate. However, this causes a problem for those who believe based on the Bible that life has only existed on the earth for a few thousand years, since fossils are found in rocks that are dated to be over million years old by radiometric methods, and some fossils are found in rocks that are dated to be billions of years old. If these dates are correct, this calls the Biblical account of a recent creation of life into question. After study and discussion of this question, I now believe that the claimed accuracy of radiometric dating methods is a result of a great misunderstanding of the data, and that the various methods hardly ever agree with each other, and often do not agree with the assumed ages of the rocks in which they are found.
Radioactive Dating Game
Important We believe any unbiased reader will realize that we were fair with our treatment of the two models in the table above. Yet, although the theory of evolution matches the facts in some cases, evolution is still an unproven theory. By now, you may believe it should be your first choice also. Unlike many others that preceded us, we attempted to find a clear defense of evolution for two reasons: To keep from being accused of bias. To keep from making claims that someone could refute later.
Creation Versus Evolution: We compare the theory of evolution with the Bible’s creation account in easy-to-understand terms, using evidence from the fields of paleontology, geology, biology, and provide links and a bibliography for those who want to study both sides of the issue.
These formations may have resulted from carcass burial in an anoxic environment with minimal bacteria, thus slowing decomposition. Stromatolites Lower Proterozoic stromatolites from Bolivia , South America Stromatolites are layered accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms of microorganisms , especially cyanobacteria.
While older, Archean fossil remains are presumed to be colonies of cyanobacteria , younger that is, Proterozoic fossils may be primordial forms of the eukaryote chlorophytes that is, green algae. One genus of stromatolite very common in the geologic record is Collenia. The earliest stromatolite of confirmed microbial origin dates to 2. The most widely supported explanation is that stromatolite builders fell victims to grazing creatures the Cambrian substrate revolution , implying that sufficiently complex organisms were common over 1 billion years ago.
Factors such as the chemistry of the environment may have been responsible for changes. Cyanobacteria as well as extremophile Gammaproteobacteria are thought to be largely responsible for increasing the amount of oxygen in the primeval earth’s atmosphere through their continuing photosynthesis. Cyanobacteria use water , carbon dioxide and sunlight to create their food. A layer of mucus often forms over mats of cyanobacterial cells.
Human Family Tree
Page 1 These Pages Print Best In Landscape Mode For forty days the flood kept coming on the earth, and as the waters increased they lifted the ark high above the earth. The waters rose and increased greatly on the earth, and the ark floated on the surface of the water. They rose greatly on the earth, and all the high mountains under the entire heavens were covered. The waters rose and covered the mountains to a depth of more than twenty feet.
Every living thing that moved on the earth perished–birds, livestock, wild animals, all the creatures that swarm over the earth, and all mankind.
Articles home page Creation vs. Evolution 0. Introduction and table of contents The following is an organized presentation on the creation vs. evolution controversy.
Email Delivery is a link to a DropBox Download and is usually emailed within 24 hours of placing your order through PayPal. Just email me for another download! Note from a Teacher: I just discovered and love your website. I have most enjoyed the Power Points. I made minor adjustments to the PPT so that students get a chance to guess what’s coming next. I’m not sure how else to get the kids into some of these ideas without these wonderful visual examples. The cutting and pasting is going well also.
At first a couple kids would mumble, “Not cutting again!
Creation vs. Evolution
Primary source references As a preface to this document, I want to point out that it is a shame that we have to continue to refute the same arguments that evolutionists keep bringing up over and over again in their attempts to argue against the fact of creation, which fact has been well established since the day the earth was created ex nihilo several thousand years ago.
It is also a shame that the masses have bought all this based on some circular reasoning about fossils, where fossils tend to be found buried, similarities between various life forms, the presence of certain decay products in rocks, and other inherently speculative arguments about the past, based on phenomena that exist in the present.
If I hope to accomplish anything, it will be to simply encourage critical thinking. One must get past the arguments ad populum that its popularity counts for something , ad hominem that if you attack the person making the argument, this counts for something , and especially ad baculum that there are people who have the clout to decree it as true , to ask the key questions and challenge the unsubstantiated assumptions and thinking of those who would hold to the evolution position.
Newfoundland and Labrador is home to some of the oldest rocks and fossils on the planet. The Johnson GEO CENTRE is a must-do when visiting St. John’s. Located on Signal Hill, it takes you deep, deep underground amidst rock that’s more than million years old.
References Life on the planet started astonishingly early. The first living organisms, in the current model of evolution, are thought to be Prokaryotes1. The oldest known fossilised prokaryotes have been dated to approximately 3. Eukaryotes2 are more advanced organisms with complex cell structures, each of which contains a nucleus. Although incredibly hard to determine their origin, they are thought to have developed 1.
Animals4, in the most basic sense of the word, are considered to have evolved from Eukaryotes. Fossils of early sponges have been discovered in million year old rock. Later on, around million years ago, some highly significant fossils of an organism which was named Charnia4. These enigmatic early animals were anchored to the sea floor where they are thought to have absorbed nutrients.
Around million years ago, during the Ordovician Period, land plants appeared, although new evidence may suggest that complex photosynthetic plants developed over million years ago. Studies of fossils from the Devonian Period — Ma5. Towards the end of this time seeds had evolved. The dominance of the Dinosaurs6 lasted for over million years, from around Ma, to their ultimate demise at the end of the Cretaceous 65 million years ago.
Radioactive Dating Game
My research focuses mainly on carnivore functional morphology. To date we have focused on using 3D dental microwear to evaluate the degree of hard object feeding in cats and bears. Directly linking radiocarbon ages with isotopic results permits the reconstruction of diet and ecology of the species and will help determine if they were influenced by changing climatic conditions over the past 50, years.
New specimens from a single deposit from Project 23 are currently being examined. Most of these insect species are still living today though not necessarily in southern California. They increase our understanding of the diversity of life in prehistoric Los Angeles and provide crucial information about the regional climate thousands of years ago.
View images by clicking on link or reduced image: Each image opens into a new window. These primitive, medium sized apes lived in rain forests between 18 and 22 million years ago. This species and others such as Dryopithecus existed before the hominid line diverged on the path to humans. This lineage ancestral gibbons is believed to have diverged from the great ape and human lineages between 17 and 25 Mya Avers, Oreopithecus ‘s hand closely matches the pattern of early hominids, with a grasping capability including firm pad-to-pad precision gripping that apes are unable to perform presumably as a response to similar functional demands to hominids Moya-Sola et al,
Natural History Museum of Los Angeles County
These formations may have resulted from carcass burial in an anoxic environment with minimal bacteria, thus slowing decomposition. Stromatolites Lower Proterozoic Stromatolites from Bolivia , South America Stromatolites are layered accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms of microorganisms , especially cyanobacteria.
While older, Archean fossil remains are presumed to be colonies of cyanobacteria , younger that is, Proterozoic fossils may be primordial forms of the eukaryote chlorophytes that is, green algae.
The Earth is old, very very old. It is difficult for us humans to fully comprehend just how old our planet actually is. This infographic offers a visual way to explore the various stages of the Earth’s history using a 12 hour clock analogy.
Opt out or contact us anytime In a presentation at the conference, Wise showed a slide of a fossil sequence that moved from reptile to mammal, with some transitional fossils in between. He veered suddenly from his usual hyperactive mode to contemplative. Wise is refining a theory, for example, that the order reflects how far the animals lived from the shore, so those living farthest from the water show up last in the record.
We have lines of possibility that we continue to advance but at the same time we recognize that this is science, so the explanations are subject to change with new discoveries. Advertisement Continue reading the main story At the conference I asked Ross whether he still believes what he wrote in his graduate thesis. His answer confirmed him as the product of the postmodern university, where truth is dependent on the framework: But if the parameter is different, portions of it could be completely in error.
The theory is the first attempt to describe the mechanism of the flood. A computer model refining the theory purports to show an earth wobbling crazily on its axis as land masses come together and then break apart, forming the continents we have today. So which side did he choose? Everybody has moments of doubt. But I can have those moments without my brain exploding.
List of human evolution fossils
January Fossils provide a record of the history of life. Smith is known as the Father of English Geology. Our understanding of the shape and pattern of the history of life depends on the accuracy of fossils and dating methods. Some critics, particularly religious fundamentalists, argue that neither fossils nor dating can be trusted, and that their interpretations are better. Other critics, perhaps more familiar with the data, question certain aspects of the quality of the fossil record and of its dating.
These skeptics do not provide scientific evidence for their views.
The chimpanzee–human divergence likely took place during about 10 to 7 million years ago. The list of fossils begins with Graecopithecus, dated some million years ago, which may or may not still be ancestral to both the human and the chimpanzee the earlier history of the human lineage, see Timeline_of_human_evolution#Hominidae, Hominidae#Phylogeny.
Human Evolution Evidence Evidence of Evolution Scientists have discovered a wealth of evidence concerning human evolution , and this evidence comes in many forms. Thousands of human fossils enable researchers and students to study the changes that occurred in brain and body size, locomotion, diet, and other aspects regarding the way of life of early human species over the past 6 million years.
Millions of stone tools, figurines and paintings, footprints, and other traces of human behavior in the prehistoric record tell about where and how early humans lived and when certain technological innovations were invented. Study of human genetics show how closely related we are to other primates — in fact, how connected we are with all other organisms — and can indicate the prehistoric migrations of our species, Homo sapiens, all over the world.
Advances in the dating of fossils and artifacts help determine the age of those remains, which contributes to the big picture of when different milestones in becoming human evolved. Exciting scientific discoveries continually add to the broader and deeper public knowledge of human evolution.