- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
- Abstract
- Affiliation
- All
- Authors
- Book Series
- DOI
- EISBN
- EISSN
- Full Text
- GeoRef ID
- ISBN
- ISSN
- Issue
- Keyword (GeoRef Descriptor)
- Meeting Information
- Report #
- Title
- Volume
NARROW
GeoRef Subject
-
all geography including DSDP/ODP Sites and Legs
-
Europe
-
Southern Europe
-
Italy
-
Apennines
-
Northern Apennines (6)
-
-
Emilia-Romagna Italy (2)
-
Po Valley (1)
-
-
-
-
-
elements, isotopes
-
carbon
-
C-13 (1)
-
C-13/C-12 (2)
-
-
isotope ratios (2)
-
isotopes
-
stable isotopes
-
C-13 (1)
-
C-13/C-12 (2)
-
O-18/O-16 (1)
-
-
-
oxygen
-
O-18/O-16 (1)
-
-
-
fossils
-
Invertebrata
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Veneroida
-
Lucinidae (1)
-
Vesicomyidae (1)
-
-
-
-
-
Vermes
-
Annelida (1)
-
Polychaeta
-
Serpulidae (1)
-
-
-
-
microfossils (1)
-
Plantae
-
algae
-
nannofossils (1)
-
-
-
-
geologic age
-
Cenozoic
-
Quaternary
-
upper Quaternary (1)
-
-
Tertiary
-
Neogene
-
Miocene
-
lower Miocene
-
Burdigalian (1)
-
-
upper Miocene
-
Messinian
-
Messinian Salinity Crisis (1)
-
-
Tortonian (2)
-
-
-
-
-
-
-
metamorphic rocks
-
turbidite (1)
-
-
minerals
-
carbonates
-
calcite (3)
-
-
silicates
-
chain silicates
-
amphibole group
-
clinoamphibole
-
hornblende (1)
-
-
-
-
framework silicates
-
feldspar group (1)
-
-
-
sulfates
-
gypsum (1)
-
-
-
Primary terms
-
carbon
-
C-13 (1)
-
C-13/C-12 (2)
-
-
Cenozoic
-
Quaternary
-
upper Quaternary (1)
-
-
Tertiary
-
Neogene
-
Miocene
-
lower Miocene
-
Burdigalian (1)
-
-
upper Miocene
-
Messinian
-
Messinian Salinity Crisis (1)
-
-
Tortonian (2)
-
-
-
-
-
-
diagenesis (4)
-
earthquakes (1)
-
Europe
-
Southern Europe
-
Italy
-
Apennines
-
Northern Apennines (6)
-
-
Emilia-Romagna Italy (2)
-
Po Valley (1)
-
-
-
-
geochemistry (1)
-
Invertebrata
-
Mollusca
-
Bivalvia
-
Heterodonta
-
Veneroida
-
Lucinidae (1)
-
Vesicomyidae (1)
-
-
-
-
-
Vermes
-
Annelida (1)
-
Polychaeta
-
Serpulidae (1)
-
-
-
-
isotopes
-
stable isotopes
-
C-13 (1)
-
C-13/C-12 (2)
-
O-18/O-16 (1)
-
-
-
oxygen
-
O-18/O-16 (1)
-
-
paleoecology (1)
-
Plantae
-
algae
-
nannofossils (1)
-
-
-
sedimentary petrology (1)
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
micrite (1)
-
microbialite (1)
-
-
-
clastic rocks
-
sandstone (3)
-
shale (2)
-
-
-
sedimentary structures
-
secondary structures
-
concretions (2)
-
-
soft sediment deformation
-
slump structures (1)
-
-
-
sedimentation (2)
-
sediments
-
clastic sediments
-
sand (1)
-
-
-
soil mechanics (1)
-
tectonics
-
neotectonics (1)
-
-
-
sedimentary rocks
-
sedimentary rocks
-
carbonate rocks
-
limestone
-
micrite (1)
-
microbialite (1)
-
-
-
clastic rocks
-
sandstone (3)
-
shale (2)
-
-
-
turbidite (1)
-
-
sedimentary structures
-
sedimentary structures
-
secondary structures
-
concretions (2)
-
-
soft sediment deformation
-
slump structures (1)
-
-
-
-
sediments
-
sediments
-
clastic sediments
-
sand (1)
-
-
-
turbidite (1)
-
The stratigraphy of seep-impacted sediment in the Verghereto marls (Santa Sofia, Italy): insights into the Late Miocene evolution of the Romagna foredeep
Messinian seep-carbonates marking the transition to the evaporite deposits in the Romagna sector of the northern Apennines (Italy)
Sand Liquefaction Induced By a Blast Test: New Insights On Source Layer and Grain-Size Segregation Mechanisms (Late Quaternary, Emilia, Italy)
Depositional history of the Epiligurian wedge-top basin in the Val Marecchia area (northern Apennines, Italy): a revision of the Burdigalian-Tortonian succession
Alluvial sand composition as a tool to unravel late Quaternary sedimentation of the Modena Plain, northern Italy
The Modena alluvial plain is located on the northern side of the northern Apennines fold-and-thrust belt, where streams draining the chain flow toward the northeast into the Po River. The alluvial plain is characterized by a spectacular abundance of archaeological sites of various ages and can be considered a natural laboratory for the reconstruction of the recent sedimentary evolution of the Po Plain. Detailed modal analyses of modern sands of the Modena Plain streams indicate that the provenance signal can be distinguished on the basis of key components, such as quartz, feldspar, carbonate, and lithic fragments. The compositional fields of the streams depend on the extent of the watershed, the recycling of older fluvial sediments, and the sediment input from tributary streams. The modal analyses demonstrate that sand composition of the major rivers (Panaro and Secchia) has not changed during the Holocene, when sediment production, storage, and dispersal were probably dominated by colluvial aggradation in an environment characterized by dense vegetation cover. In the late Pleistocene, fluvial sands were characterized by higher feldspar contents compared with modern and Holocene sands. This feldspar abundance could reflect a high-frequency signal in sediment supply rates linked to secular variations of weathering processes, and it reveals the strong denudation and sediment removal conditions of the last glacial stage (15–18 ka). The implication of this study is that provenance of Holocene sediments now buried in the floodplain can be determined by a simple comparison with modern sand composition. Sand composition studies may represent a useful tool to reconstruct the Pleistocene-Holocene fluvial sediment supply and the evolution of human settlements as function of climate and drainage system changes.
Palaeogeography of the Upper Cretaceous–Eocene carbonate turbidites of the Northern Apennines from provenance studies
Abstract The Upper Cretaceous Helminthoid Flysch (HF) of the Northern Apennines consists of thick and regionally widespread deep-water carbonate turbidite successions, deposited during the initial stages of Alpine collision. The HF spans the time from Turonian to Early Eocene and is mainly composed of intrabasinal carbonate ooze mixed with clay; siliciclastic terrigenous beds are also present, but they are a volumetrically minor component of the successions. Petrographic and sedimentological signatures indicate that the HF was deposited in distinct basins located below the carbonate compensation depth. Bulk composition and heavy minerals of terrigenous beds indicate provenance from different crustal levels of the European and Adria plates. The petrographic and palaeobathymetric characteristics of these turbidites indicate the coexistence of an active-margin tectonic setting, a palaeogeographical position suitable for carbonate ooze production and storage, and limited supply of terrigenous detritus into the basin. Palaeotectonic reconstructions and stratigraphic data suggest that Adria represented a vast repository of penecontemporaneous carbonate mud; the presumably intense seismic activity related to the pre-collisional Alpine orogeny promoted large-scale failures of shelf and/or slope biogenic muddy sediments, resulting in the deposition of a large volume of carbonate turbidites. Only occasionally, turbidity currents probably linked to exceptional fluvial floods generated pure terrigenous beds with different petrographic signatures for each HF succession.