Introduction to Crater Lake

In order to understand how the Jezero crater lake has developed over time, including the potential timeline and environments of habitability, it is necessary to work out the relations between the geologic units in Jezero crater.

The total heat associated with the expanded volume is estimated to have been ≥ 10 14  J, similar to or exceeding the annual heat released from Yugama Crater Lake of Mt.

Thus, volcano monitoring through gas fluxes from crater lakes should consider lacustrine processes that modulate the volcanic gas output over time.

Rano Raraku, the crater lake constrained by basaltic tuff that served as the primary quarry used to construct the moai statues on Rapa Nui (Easter Island), has experienced fluctuations in lake level over the past centuries.

This age shows that Boltysh has a close temporal association with the Lower C29n hyperthermal recorded by global sediment archives and in the Boltysh crater lake sediments.

Several lahar generating water overflows have occurred from Albano crater lake, the most recent in Roman times (IV Century B.

To address these questions, we looked for sex-associated loci in full genome data from 647 individuals of Astatotilapia calliptera from Lake Masoko, a small isolated crater lake in Tanzania, which contains two distinct ecomorphs of the species.

Lakes Monoun, Nyos, and Oku are three neighbouring crater lakes located in the active area of the Cameroon Volcanic Line (CVL) which structural and geodynamical state remains less known and does not allow to understand why only the first two are the seats of CO2 storage and exploded in 1984 and 1986 respectively.

By using metabarcoding analysis, metagenomics, metabolomics and enzymology techniques, the microbiome of the crater lake was characterized in this study.

Uganda, Cameroon, Ethiopia), and the absence of peak-activity crater lakes, generally found at polygenetic arc-volcanoes.

Here, sedaDNA is used for the first time to reconstruct the history of phytoplankton communities in a crater lake in northern China over the past two millennia.

The case study selected for this study was Ometepe Island in Nicaragua, where the crater lake of an extinct volcano was considered a feasible upper reservoir of a pumped storage hydropower plant, reducing the investments associated with this component.

To assess microbialite growth rate and the influence of substrates on carbonate formation in Alchichica, an alkaline crater lake harbouring well-developed carbonate microbialites, we incubated in situ sterilized Nylon mesh, hydromagnesite and aragonite crystals, and bleached-coral aragonite for 2 years.

After the mid-2000s until present, there is a period of activation of the Maly Semyachik volcano, which is expressed in an increase in temperature, mineralization and a sharp increase in the volume of the crater lake.

This study presents the first hydrogeochemical model of the hydrothermal systems of Turrialba and Irazú volcanoes in central Costa Rica, manifested as thermal springs, summit crater lakes, and fumarolic degassing at both volcanoes.

Here we present new results from Lake Chala, a crater lake in equatorial East Africa, based on sedimentary grain-size distributions.

This study presents the first hydrogeochemical model of the hydrothermal systems of Turrialba and Irazú volcanoes in central Costa Rica, manifested as thermal springs, summit crater lakes, and fumarolic degassing at both volcanoes.

The presence of numerous crater lakes in the Cameroon Volcanic Line offers an exceptional opportunity to study the influence of habitat on the evolution of cichlids.

In this study, a total of 276 water-column profiles of temperature, conductivity and dissolved oxygen collected between 2000 and 2017 in 60 volcanic crater lakes in equatorial western Uganda are used to classify these lakes according to mixing regime.

The recorded historic eruptions were mainly phreatomagmatic due to the presence of a crater lake.

Huguangyan Lake is a closed inland freshwater coneless volcanic crater lake near the coast in tropical southern China, less than 5 km from an estuary.

ABSTRACT We analysed and characterized the cyanobacteria in microbialites of Alchichica crater lake over a depth gradient, from 3 to 30 m.

were found in a warm, tropical crater lake characterized by low conductivity and dissolved oxygen content, medium alkaline pH, and magnesium-calcium-bicarbonate-rich waters.

A Gram-stain-negative, aerobic, flagellated, non-spore-forming, rod-shaped bacterium, named B2R-29T, was isolated from water collected from a crater lake on Da Hinggan mountain, PR China.

Modeling the growth of the crater lake at Kīlauea summit is important for assessing the potential for explosive volcanism.

We report the unusual case of a girl diagnosed with Neisseria gonorrhoeae after bathing in a heavily frequented hot pool at the edge of the crater lake Specchio di Venere (“Mirror of Venus”) on Pantelleria Island, Italy.

One of the major challenges in the understanding of the crater lakes dynamics and their connection with magmatic/hydrothermal processes is the continuous tracking of the physical behavior of lakes, especially in cases of remote and poorly accessible volcanoes.

PA2, were isolated from crater lake El Chichon in Chiapas, Mexico.

The total heat associated with the expanded volume is estimated to have been ≥10 14 J, similar to or exceeding the annual heat released from Yugama Crater Lake of Mt.

, 2020), Aniakchak II (Alaska, 1600s BCE, VEI=6, 57°N), Crater Lake (Mazama, Oregon, 5600s BCE, VEI=7, 43°N) and Laacher See (Germany, c.

We studied the seasonal variation of the phytoplankton community and the factors associated with Microcystis aeruginosa blooms along the water column of Lake Alberca de Tacámbaro, a warm monomictic crater lake located in Mexico, during 2018 and 2019.

To shed light on their sources and identify potential environmental factors driving their production in lakes, we investigated their occurrence and distribution in the water column, surficial lake-bottom sediments, and catchment soils of Lake Chala, a permanently stratified (meromictic) tropical crater lake in East Africa.

We analyzed the concentration and stable carbon isotopic composition of black carbon (BC and δ13CBC) of a 34,000 cal yr BP sedimentary sequence from a crater lake (Tianchi).

As part of a water quality monitoring during 2015 in Santa Maria del Oro crater lake, Nayarit, a cyanobacterial bloom was detected.

Here we explore the lacustrine sedimentary record of Lagoa da Lomba, a crater lake in the central upland area of Flores Island (Azores), to gain insight into the recent eruptive history of this island.

Examination of crater lake sediments, where detrital clay mineral input is minimized, demonstrate that neoformed trioctahedral clay minerals are poorly crystalline trioctahedral smectites.

The findings showed that Marsabit forest ecosystem was supporting a total of 115 active water points which were dominated by shallow wells (68) followed by boreholes (21), water pans (14), springs (4), streams (6), and crater lakes (2).

This study was conducted on the Ngaoundaba Crater Lake sediments to infer provenance, weathering conditions, organic matter accumulation, and trace metal concentrations.

These are primarily present-day crater lakes such as Pingualuit, Bosumtwi, El’gygytgyn, and Tswaing (Guyard et al.

Hydrochemistry of crater lakes (n = 15) in the Ndali-Kasenda cluster was deciphered using standard methods of the American Public Health Association to understand the major ion chemistry; spatial distribution, occurrence, and non-carcinogenic health risks due to exposure to fluoride levels in the lakes in Ndali- Kasenda cluster, Albertine Graben.

</p><p>Post-collisional volcanism is one of the key features of geology of Armenia and volcanological geosites play a significant role in the proposed Geopark, particularly, some of Pleistocene-Holocene volcanoes, lava flows, lava tubes, lava falls, crater lakes, as well as thick obsidian flows with records of Paleolithic use and other sites.

In the present work, we analysed the mineralogical and chemical composition, including major and trace element composition of microbialites as well as their microbial community using samples from ten crater lakes of the Trans&#8208;Mexican volcanic belt along an alkalinity-salinity gradient.

This study assesses the contribution of Landsat 7 ETM + and Landsat 8 OLI images to observe existing fractures and faults of at least 12 km in length around the lakes Nyos, Monoun and Oku whose are three major crater lakes in the Cameroon Volcanic Line (CVL) environment.

We focus on the extent and functional relevance of DNA methylome divergence between two Astatotilapia calliptera ecomorphs in crater Lake Masoko, southern Tanzania.

: We present a first limnological study of three humic crater lakes in the archipelago of Samoa.

A sediment core that covers most of the history of Lake Dziani Dzaha, a hypereutrophic saline, alkaline and mostly anoxic crater lakewhich waspostulatedto be a modern analogue of such environments, has been investigated using several analytical approaches comprising bulk (Rock-Eval and C, N, S elemental analyses), isotopic (δ13,14C, δ15N, δ18O, δ33,34,36S), and sedimentological descriptions.

Kusatsu-Shirane volcano hosts numerous thermal springs, fumaroles, and the crater lake of Yugama.

08 km2 around an active crater lake at Anak Krakatau between February and January 2020.

Individual chapters critically investigate modern scientific hypotheses about Pleistocene migrations; they follow in the tracks of imperial and transatlantic adventurers in search of Maya ruins and fossil megafauna; and they triangulate colonial and transcultural reconstructions of the events leading to the formation of Crater Lake (Oregon) with previously ignored Indigenous traditions about the ancient cataclysm.

A method is presented to separate MTB from highly abundant abiotic magnetic particles in the sediment of this crater lake.

<p>Acidic crater lakes are common features of subaerial volcanic systems; indeed, research suggests the existence of over 700 volcanic lakes around the world.

Here, we present a palynological record from the Santa Maria del Oro crater lake, located within the distribution area of the STDF and the adjacent dry oak forest which gives insight into the changes in diversity and human impact at this tropical site.

The Dziani Dzaha (Mayotte, Indian Ocean) is a tropical, saline, alkaline crater lake that has recently been presented as a modern analog of Proterozoic Oceans due to its thalassohaline classification (having water of marine origin) and specific biogeochemical characteristics.

More dynamic processes are recorded in the hydrothermal system, where the location and activity of fumarolic features have been ephemeral and the crater lake has varied in scale over short time intervals.

Here, we derive paleomagnetic records from independently radiocarbon dated sediment records from three maars in Madagascar: Andraikiba and Amparihibe are terrestrial maars located on the main island of Madagascar and on a small island in the Northwest, whereas Crater Lake is a maar which has an open connection to the Indian Ocean.

The results of this study are the natural potential of Ijen Crater TWA including the I jen crater lake, blue fire, sulfur mining, vegetation and animals , P altuding fun t rekk ing, and B under cottage.

Recent studies indicate that 3–4 Ga river valleys and delta deposits in crater lakes could have been produced in <~107 years.

At Masaya, we have indications of a shallow (0–3 km) magmatic chamber, offset to the west and not directly below the active Santiago vent, where the crater lake is located At greater depth (3–8 km) a low velocity anomaly towards the northeast coincides in location with a modelled positive gravity anomaly and could indicate the presence of a former intrusive body.

The Nakadake cone hosts a hot and acid crater lake and frequent phreatic-to-magmatic eruptions.

A new aerobic betaproteobacterium, strain SA-152T, was isolated from the water of a crater lake.

The species has been named after a high altitude saline crater lake from Central Mexico, where the specimens were collected.

Acidic crater lakes at persistently active volcanoes act as both a moderator and an index of volcanic processes.

In spite of prelanding predictions that Gusev crater had hosted a large body of standing water in the Late Noachian/Early Hesperian time frame, evidence garnered by Spirit shows that alteration was most commonly highly localized and done under conditions of low water/rock ratios, and must have occurred after draining of the Gusev crater lake.

We show that in three consecutive years after GEC formation (2014–2017), both morphometry and hydrochemistry of the inner crater lakes can become indistinguishable from other lakes.

Thus, active faults in the Klamath graben mark the northern terminus of a dextral transtensional fault system spanning the southern Cascadia backarc from Crater Lake southward to the northern Sierra Nevada.

One novel ascomycetous yeast strain TF5-16-2 was isolated from water samples of Tuofengling crater lake located in Da Hinggan Ling Mountain, in the Inner Mongolia province of China.

We studied the gut microbiota of extremely young adaptive radiations of Nicaraguan crater lake cichlid fish (Amphilophus cf.

Since 1978 water chemistry of the Laguna Caliente crater lake has been used to monitor volcanic activity at Poas, Costa Rica, making it arguably the best studied hyper-acidic crater lake on Earth.

Towards the eastern side of the current Laguna Caliente crater lake, relicts of a 8.

In this study, we examined 11 morphologically distinct cichlid species endemic to Barombi Mbo, the largest crater lake in western Cameroon, namely Konia eisentrauti, Konia dikume, Myaka myaka, Pungu maclareni, Sarotherodon steinbachi, Sarotherodon lohbergeri, Sarotherodon linnellii, Sarotherodon caroli, Stomatepia mariae, Stomatepia pindu, and Stomatepia mongo.

The cichlid fishes of Barombi Mbo, a small crater lake in western Cameroon, became one of the most widely accepted examples of sympatric speciation (Schliewen, Tautz, & Paabo, 1994).

Observation of an overall upward coarsening in grain size and thickening of laminae throughout the Pahrump Hills succession is consistent with deposition from basinward progradation of a fluvial‐deltaic system derived from the northern crater rim into the Gale crater lake.