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Pseudofossils may be misleading, as some types of mineral deposits can mimic lifeforms by forming what appear to be highly detailed or organized structures. One common example is when manganese oxides crystallize with a characteristic tree-like or dendritic pattern along a rock fracture.
These pseudofossils form as naturally occurring fissures in the rock are filled by percolating mineral solutions. They form when water rich in manganese and iron flows along fractures and bedding planes between layers of limestone and other rock types, depositing dendritic crystals as the solution flows through.
The term dubiofossil is a portmanteau word used in geology and paleontology for a problematic structure that looks like a fossil but has an uncertain biologic origin. From Latin dubius, and English fossil, the word has been used mainly for remains found in rocks dating from the early history of the Earth (Precambrian rocks), but it is also applicable in other settings such as problematic ...
Pages in category "Pseudofossils" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. ...
For example, great numbers of strikingly symmetrical concretions have been found eroding out of outcrops of Quaternary proglacial lake sediments along and in the gravels of the Connecticut River and its tributaries in Massachusetts and Vermont. Depending the specific source of these concretions, they vary in an infinite variety of forms that ...
Take vegetables as an example. If you’re trying to lose weight, you’ve likely heard that eating more vegetables is helpful since they’re high in fiber and low in calories. However, some ...
The following are just a few examples of what’s considered extraordinary life circumstances that could make you eligible for a rate exception: State or federal emergency, such as a flood, fire ...
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