Rapid Bedrock Incision by Water Stream Outburst: The Case of the Oroville Dam (California, USA)
New observational data on the phenomenon of rapid bedrock erosion became recently available after the well documented events that affected the Oroville Dam in February 2017.
The Grand Staircase
In Utah and northern Arizona is a unique geological landscape feature, called the Grand Staircase. Imagine a staircase with each step a thousand feet or more high, and many miles wide. We will discuss hypotheses in regard to how this feature was formed. Published in Origins, v. 65.
Spotlight: The Fossil “Forests" of Yellowstone National Park
Two contributions are included in this segment (A Chemist's Perspective of the Yellowstone Petrified “Forests," by C. Webster; The Explanation for the “Yellowstone Fossil Forests," an Uncompleted Research Project, by L. Brand). They are intended to generate renewed interest on a valuable research topic. Published in Origins, v. 65.
Sand Dunes of the Sahara: How Should We Relate Scripture to Earth Science Questions?
A Christian scientist, while accepting the testimony of Scripture about God’s past intervention in Earth’s history, can still keep an open mind toward aspects of the geologic record that are unusual and different.
Can Rocks Teach Us Something About God?
Can we learn more about the qualities of the Creator through the study of geology?
What Is the Evidence for a Large Asteroid Impact at the Cretaceous-Paleogene (K-Pg) Boundary?
The hypothesis of a large meteorite impacting the surface of the Earth at the end of the Cretaceous was introduced almost four decades ago. In the ensuing years, the geologic community gathered a large body of data in support of this hypothesis, elevating it to the status of a universally accepted fact of Earth history. However, competing models and lively discussions are still unfolding over the dynamics and environmental consequences of this large impact.
A Review of the Documentary Film "Is Genesis History?"
Is Genesis History? asks a question that many Christians struggle with. Is the first book of the Bible comprised of pious myths? Is it an allegory designed to teach important lessons about God, but not actually a record of the history of life on Earth? Or is it a reliable record of events that actually occurred in the past? In other words, is Genesis the oldest book of history available today, one…
The Geological Story Told by Iceland
Iceland is a volcanic island in the North Atlantic Ocean, slightly below the Arctic Circle. The island is situated on a mid-ocean ridge at the boundary between the North American plate and the Eurasian plate. In Iceland, we find evidence of horizontal movements, in which two plates spread apart as the crust dilates with intrusion of new magma. Iceland, however, is also associated with a mantle plume (a narrow stem of upwelling of magma from deep in the mantle) that has maintained volcanism high and vigorous.
Alpine Ophiolites: Remnants of a Lost Ocean
In 1813, French geologist Alexandre Brongniart published a paper on the mineralogical classification of rocks where he introduced the new name “ophiolite” for a suite of dark rocks rich in the mineral serpentine. The name was coined from the Greek words for “snake” and “rock,” which seemed fitting, given the smooth dark green appearance of ophiolites, vaguely reminiscent of snake-skin.
The term Cenozoic (or Cainozoic) means “recent life,” implying that the fossils encountered in these layers are more similar to modern species.
The Paleozoic Rock Record: A Broad Overview of Features and Trends
The rocks of the Earth are like pages of a history book containing information about the past. Geologists who enjoy reading this “book” have found that it consists of two “volumes:” the first, named Precambrian, is mostly devoid of macroscopic fossils. The second, named Phanerozoic, contains layers and sediments providing a rich archive of past forms of animal and vegetal life. The Phanerozoic “volume”…
The Precambrian: Part 3 of 3
This third part of a series on the Precambrian provides two perspectives suggested by creationists on how to interpret this portion of the rock record.
The Precambrian: Part 2 of 3
This second part of a series on the Precambrian describes Precambrian rock exposures, as well as the atmosphere, climate, and Precambrian life. Many illustrative pictures are included, and design examples and creationist ideas are interspersed throughout.
The Precambrian: Part 1 of 3
This first section of a 3 parts series on the Precambrian summarizes the standard model for formation of the Universe, Solar System and Earth, Moon, oceans, continents, and plate tectonics. Brief references to the Universe, Sun, and Moon are included because what happens beyond Earth sets the stage for what happens on Earth during the Precambrian and in the Genesis 1 account.
Mineralogy: A World of Law and Beauty
This article provides an introduction to mineralogy and outline the different mineral categories, discusses some interesting features about minerals, describes the formation of minerals in different environments, and mentions some minerals referenced in the Bible.
The Cambrian Explosion
Texbooks describe the fossil record as the ‘best evidence’ for evolution. They claim that the fossil record proves evolution because there seems to be a succession from simpler to more complex life forms, and a succession from marine to terrestrial forms. Charles Darwin suggested that all life has a common ancestor. “All the organic beings which have ever lived on this earth may be descended from some…
The Role of Catastrophes in Scientific Thinking
The cathedral was crowded; this was All Saints’ Day! Unexpectedly, the building started shaking and the parishioners tried to rush out through the arched entrance. Others were trying to escape from another church located on one side of the cathedral, while buildings several stories high rose ominously on the other side. Suddenly, moments later, the fronts of the churches and accompanying buildings…
Was There A Great Genesis Flood?
The first book of the Bible states that following a recent creation by God, there was an astonishing worldwide Flood. In that context, the Flood would have been responsible for most of the great fossil bearing layers of the earth. However, current scientific interpretations propose that these layers slowly accumulated over billions of years thus allocating more time for the slow gradual evolution of…
Glaciations and the Geologic Record
Glaciations are defined as periods of temperature reduction in the Earth's climate which result in the onset or expansion of continental and polar ice sheets and alpine glaciers. Does the geologic record preserve evidence for the occurrence and extent of former ice ages? What kind of information is used to make these inferences? The answer to these questions has the potential for influencing our models…
Traces of Life from Archean Rocks: Evidence and Challenges
The rocks found on the surface of the Earth did not form all at the same time. Geologists schematize this different order of formation using a column, of which the lower layers represent older rocks and top layers represent younger rocks. Archean rocks are the ones at the very bottom of this geologic column, and are therefore interpreted as the oldest rocks. They are often heavily deformed and altered…
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