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The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 104, Ed. 1 Saturday, February 27, 2010 (open access)

The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 104, Ed. 1 Saturday, February 27, 2010

Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date: February 27, 2010
Creator: Wright, Cyndi
Object Type: Newspaper
System: The Portal to Texas History
Analysis of the Younger Dryas Impact Layer (open access)

Analysis of the Younger Dryas Impact Layer

We have uncovered a thin layer of magnetic grains and microspherules, carbon spherules, and glass-like carbon at nine sites across North America, a site in Belgium, and throughout the rims of 16 Carolina Bays. It is consistent with the ejecta layer from an impact event and has been dated to 12.9 ka BP coinciding with the onset of Younger Dryas (YD) cooling and widespread megafaunal extinctions in North America. At many locations the impact layer is directly below a black mat marking the sudden disappearance of the megafauna and Clovis people. The distribution pattern of the Younger Dryas boundary (YDB) ejecta layer is consistent with an impact near the Great Lakes that deposited terrestrial-like ejecta near the impact site and unusual, titanium-rich projectile-like ejecta further away. High water content associated with the ejecta, up to 28 at. percent hydrogen (H), suggests the impact occurred over the Laurentide Ice Sheet. YDB microspherules and magnetic grains are highly enriched in TiO{sub 2}. Magnetic grains from several sites are enriched in iridium (Ir), up to 117 ppb. The TiO{sub 2}/FeO, K/Th, TiO{sub 2}/Zr, Al{sub 2}O{sub 3}/FeO+MgO, CaO/Al{sub 2}O{sub 3}, REE/ chondrite, FeO/MnO ratios and SiO{sub 2}, Na{sub 2}O, K{sub 2}O, Cr{sub 2}O{sub 3}, …
Date: February 27, 2010
Creator: Firestone, Richard B.; West, Allen; Revay, Zsolt; Hagstrum, Jonathon T,; Belgya, Thomas; Hee, Shane S. Que et al.
Object Type: Article
System: The UNT Digital Library
Iran Sanctions (open access)

Iran Sanctions

This report focuses on the United States' relationship with Iran and how the Obama Administration is handling prior administrations' economic sanctions against Iran. The Obama Administration's policy approach toward Iran has contrasted with the Bush Administration's by attempting to couple the imposition of sanctions to an active and direct U.S. effort to negotiate with Iran on the nuclear issue.
Date: February 27, 2010
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 42, Ed. 1 Saturday, February 27, 2010 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 90, No. 42, Ed. 1 Saturday, February 27, 2010

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: February 27, 2010
Creator: Halter, Janie
Object Type: Newspaper
System: The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Saturday, February 27, 2010 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Saturday, February 27, 2010

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: February 27, 2010
Creator: Wray, Kelly
Object Type: Newspaper
System: The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 41, Ed. 1 Saturday, February 27, 2010 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 118, No. 41, Ed. 1 Saturday, February 27, 2010

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: February 27, 2010
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History