Download e-book for iPad: A Holocene Sedimentary Record from Lake Silvana, SE Brazil: by Dr. Saulo Rodrigues-Filho, Prof. Dr. Dr. h.c. mult. German

By Dr. Saulo Rodrigues-Filho, Prof. Dr. Dr. h.c. mult. German Müller (auth.)

ISBN-10: 3540662057

ISBN-13: 9783540662051

Mineralogical-sedimentological and geochemical investigations together with pollen info of a 12.7-m-long dated sediment middle from Lake Silvana, SE Brazil, let the reconstruction of the climatic background during the last 10,000 years. The lowermost part (I) displays a rough paleosol-type sediment with considerable plant particles and rootlets; pollen exhibits grassland crops. part II represents fine-grained lake sediments; pollen shows a savanna-like crops. part III represents a pollen-free, coarse-grained allogenic sediment deposited less than excessive transportation strength (increased precipitation). part IV, a greenish series with expanding C content material in the direction of the head, has a pollen spectrum of present-day plants (semideciduous forest). different sediment sections convey a reference to erosional levels within the catchment of the lake, in line with mineralogy and geochemistry, that are a reaction to weather development.

Show description

Read or Download A Holocene Sedimentary Record from Lake Silvana, SE Brazil: Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data PDF

Similar nonfiction_7 books

New PDF release: Knowledge Incorporation in Evolutionary Computation

This conscientiously edited publication places jointly the state of the art and up to date advances in wisdom incorporation in evolutionary computation inside a unified framework. The e-book presents a finished self-contained view of data incorporation in evolutionary computation together with a concise advent to evolutionary algorithms in addition to wisdom illustration tools.

Read e-book online Knowledge Processing and Decision Making in Agent-Based PDF

Wisdom processing and selection making in agent-based platforms represent the main parts of clever machines. The contributions integrated within the ebook are:Innovations in wisdom Processing and determination Making in Agent-Based SystemsTowards Real-World HTN making plans AgentsMobile Agent-Based approach for dispensed software program upkeep software program brokers in New iteration Networks: in the direction of the Automation of Telecom approaches Multi-agent platforms and Paraconsistent wisdom An Agent-based Negotiation Platform for Collaborative Decision-Making in building provide Chain An Event-Driven set of rules for brokers on the net A standard cellular Agent Framework towards Ambient Intelligence constructing Actionable buying and selling StrategiesAgent Uncertainty version and Quantum Mechanics RepresentationAgent Transportation Layer version method software program brokers to let carrier Composition via Negotiation complicated know-how in the direction of constructing Decentralized self sufficient versatile production platforms

Additional resources for A Holocene Sedimentary Record from Lake Silvana, SE Brazil: Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data

Sample text

Paleoenvironmental zones I to IVA as described in the text. e, ,~0"" 0 ~r~ns,z, C(org) (,/,) >20pm(%) 15 0 ° ~ - P b (pg/g) 1000 i ~ Cu (pg/g) 100 0 ~i ~ . . . - . . . C r (pglg) 100 0 Ti (%) 1200 ~ 17n ~ ~ 300 ~ = i ~ ~=- , 39o ; "== i ~ --- ~-- 420 ~' ~ ~ ~ P-"--' 480 ~. ~ ! , 550 ~" ~ ~ 1,5 ..... ~ , ~ ............ ~ ---J A oE~0 6T0 " " 700 ," J~ 740 ~' =,, m m m m i 77o; u ~800~ 830 b, 8~o ~ , i ~ i ~ ' ' m B i J 930 " 1140 i ' m m 1230 . . . . 4 Summary diagram of chemical stratigraphy and grain size >20 Hm.

The oxycline in the 10-m deep Lake Carioca most closely resembles that of Lake Silvana. , 1994). In summer, pH values in Lake Silvana typically decrease across the zone of aerobic oxidation of organic matter and undergo a slight decrease in the anoxic zone. 2 at the bottom of the water column, while electrical conductivity varied from 79 to 155 gS/cm near the sediment-water interface (Fig. 18). 0 at the bottom, while electrical conductivity ranges from 20-30 to 50-70 gS/cm downwards. Electrical conductivity, alkalinity and concentrations of NH4+ and ZCO2 are very well correlated in the water column of Lake Carioca and other lakes studied by Tundisi et al.

Gibbsite, however, may occur either in red ferralitic soils (Curi and Franzmeier, 1984) or in beige soils (Irion, 1984). 1 Sampling One sediment core and two soil profiles were collected in Lake Sitvana and its catchment. 7 m long and was collected using a piston corer capable to reach great depths with excellent recovery rates. This has been assessed through the length of each core section after extrusion, which indicated negligible loss of material. A platform was built over two small boats and fixed with three 12-m-long Eucalyptus trunks (Fig.

Download PDF sample

A Holocene Sedimentary Record from Lake Silvana, SE Brazil: Evidence for Paleoclimatic Changes from Mineral, Trace-Metal and Pollen Data by Dr. Saulo Rodrigues-Filho, Prof. Dr. Dr. h.c. mult. German Müller (auth.)


by Edward
4.4

Rated 4.00 of 5 – based on 31 votes