Impacts of volcanic eruptions and early recovery in freshwater environments and organisms

The minerals pyrite and marcasite (broadly termed pyritic minerals) are iron sulfides that are common if not ubiquitous in sedimentary rocks, especially in association with organic materials (Berner, 1970). In most marine sedimentary associations, pyrite and marcasite are associated with organic sediments rich in dissolved sulfate and iron minerals. Because of the rapid consumption of sulfate in freshwater environments, however, pyrite formation is more restricted in nonmarine sediments (Berner, 1983). The origin of the sulfur in nonmarine environments must lie within pre-existing rocks or volcanic detritus; a relatively small, but significant contribution may derive from plant and animal decomposition products.

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Hazelden Study Validates Twelve Step Tool Gauging Twelve Step Affiliation Among Young Adults in Early Recovery

PsycEXTRA Dataset ◽

10.1037/e594842012-001 ◽

2011 ◽

Keyword(s):

Young Adults ◽

Twelve Step ◽

Early Recovery

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Pathology and Resilience: Narratives of Trauma Survivors in Early Recovery

PsycEXTRA Dataset ◽

10.1037/e660232011-001 ◽

2011 ◽

Author(s):

Nicola Brown

Keyword(s):

Trauma Survivors ◽

Early Recovery

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Early recovery following traumatic brain injury and alcohol withdrawal management.

Rehabilitation Psychology ◽

10.1037/rep0000240 ◽

2018 ◽

Vol 63 (4) ◽

pp. 588-594

Author(s):

Daniel W. Klyce ◽

Kristin M. Graham ◽

Russell W. Lacey ◽

William E. Carter

Keyword(s):

Traumatic Brain Injury ◽

Brain Injury ◽

Alcohol Withdrawal ◽

Early Recovery ◽

Withdrawal Management

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Reconstruction of maximum temperature on Zhegu Mountain, western Sichuan Plateau (China)

Climate Research ◽

10.3354/cr01606 ◽

2020 ◽

Vol 81 ◽

pp. 1-14

Author(s):

M Keyimu ◽

Z Li ◽

Y Zhao ◽

Y Dong ◽

B Fu ◽

...

Keyword(s):

Tree Growth ◽

Ring Width ◽

Volcanic Eruptions ◽

Southwestern China ◽

Maximum Temperature ◽

Driving Mechanism ◽

Western Sichuan ◽

Relationship Analysis ◽

Decadal Scale ◽

Thermal Variability

Historical temperature reconstructions at high altitudes are still insufficient in southwestern China, which is considered one of the most sensitive areas to climate change in the world. Here we developed a tree ring-width chronology of Faxon fir Abies fargesii var. faxoniana at the upper timber line on Zhegu Mountain, Miyaluo Scenic Area, western Sichuan, China. The climate-tree growth relationship analysis indicated temperature as the dominant regulator on radial tree growth in this region. The reconstruction of aggregated maximum temperature (TMX) of autumn and winter for the period 1856-2016 was achieved with a linear regression model that accounted for 43.6% of the actual variability in the common time series (1954-2016). The reconstruction identified 4 warm periods and 3 cold periods. Similarities of warm and cold periods with previously published reconstructions from nearby sites indicated the reliability of our reconstruction. The significant positive correlation between TMX reconstruction and the Asian-Pacific Oscillation index and the Atlantic Multi-decadal Oscillation index suggested a linkage between large-scale climate circulations and the thermal variability at a multi-decadal scale on the western Sichuan Plateau. We also found that solar activity exerted a strong influence on decadal temperature variability in this region. The cold periods were matched well with historical large volcanic eruptions. Our results strengthen the historical climatic information in southwestern China and contribute to further understanding the regional thermal variability as well as its driving mechanism.

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