Speleothem - Wikipedia
A speleothem (/ ˈ s p iː l i ə θ ɛ m /; from Ancient Greek σπήλαιον (spḗlaion) 'cave' and θέμα (théma) 'deposit') is a geological formation made by mineral deposits that accumulate over …
Speleothems - Caves and Karst (U.S. National Park Service)
2022年4月27日 · The term speleothem refers to the mode of occurrence of a mineral—i.e., its morphology or how it looks—in a cave, not its composition (Hill, 1997). For example, calcite, …
Paleoclimatology: Speleothems - NASA Earth Observatory
2005年6月28日 · A growing speleothem looks smooth and wet. Minerals dissolved in groundwater can crystallize on exposed surfaces of underground passages. The deposited minerals form …
How Stalactites and Stalagmites Form - U.S. National Park Service
2015年4月10日 · The word speleothem is derived from the Greek words spelaion meaning "cave" and thema meaning "deposit". The speleothems with which most people are familiar are …
Speleothems: A guide to speleothem form and identification
Readers will learn to classify a wide variety of speleothems by appearance, method of formation, and common geographic locations. Speleothems also provides sources for additional …
Speleothem - an overview | ScienceDirect Topics
Speleothems are secondary mineral deposits formed in caves by flowing, dripping, ponded, or seeping water. The most commonly occurring minerals are calcite, aragonite, and gypsum …
Speleothems (Cave Formations) - U.S. National Park Service
2020年7月28日 · Many speleothems are found in Lehman Caves. Table 1 provides an overview. Table 1. Selected speleothem types in wild caves (based on Hill and Forti 1997, Palmer 2007). …
Speleothems - SpringerLink
2023年11月6日 · The term speleothem is used to cover all secondary chemical deposits in caves and, occasionally, of mines in limestone (karst) terrains. Its etymology is from the Greek …
Speleothem - National Centers for Environmental Information
2018年11月2日 · Speleothems are mineral deposits formed from groundwater within underground caverns. Stalagmites, stalactites, and other forms may be annually banded or contain …
What Are Speleothems? - Wonderopolis
The excess calcium gets deposited on the ceilings, floors, and walls of the cave, creating unique formations known as speleothems. The word "speleothem" comes from the Greek words …