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Of One Blood: Or, the Hidden Self

為了解決NORTH BAYOU的問題，作者Elizabeth Hopkins, Pauline 這樣論述：

Pauline Elizabeth Hopkins (1859-1930), acclaimed African-American novelist and intellectual, was raised in Boston, Massachusetts and first rose to prominence as a playwright and performer before later turning to journalism and literature. Her use of the romantic novel as a medium by which to explore

race and social issues, through works such as Contending Forces: A Romance Illustrative of Negro Life North and South, made her a pioneer of her time. As an editor and director of The Colored American Magazine, she wielded significant literary and cultural influence, and went on to write stories an

d articles for a number of other magazines. Patty Nicole Johnson writes sci-fi that envisions a more equitable society. Her work has been published or is forthcoming in New American Legends, On the Seawall, Midnight & Indigo, Constelación and Flame Tree’s Black Sci-Fi Short Stories. She is also revi

sing her debut novel, The Rhythm of Reveries and has been a panellist at FIYAHCON. Visit pattynjohnson.com or Twitter & Instagram at @pattynjohnson. Dr. Sandra M. Grayson (series Foreword) is a tenured Full Professor in the English Department at University of Wisconsin-Milwaukee. Her numerous public

ations include the books Visions of the Third Millennium: Black Science Fiction Novelists Write the Future; Symbolizing the Past: Reading Sankofa, Daughters of the Dust, and Eve’s Bayou as Histories; A Literary Revolution: In the Spirit of the Harlem Renaissance; and Sparks of Resistance, Flames of

Change: Black Communities and Activism.

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An assessment of the magmatic conditions of Late Neoproterozoic collisional and post-collisional granites from the Guéra Massif, South-Central Chad

為了解決NORTH BAYOU的問題，作者范氏芝 這樣論述：

The Guéra massif of South-Central Chad recorded the late stages of the Pan-African orogeny related to the collision between the Congo Craton and the Saharan Metacraton. The granitic rocks of the Guéra massif are Neoproterozoic and were emplaced during three distinct intervals: ~590 Ma, ~570 Ma, and

~560 Ma. The younger granites from the Guéra massif may be related to the slightly younger granites (~550 Ma) that constitute the Lake Fitri inliers to the west. The oldest (≥ 590 Ma) rocks have geochemical characteristics of collisional granites whereas the younger (≤ 570 Ma) rocks are similar to

post-collisional granites. Biotite and amphibole chemistry for both types of granites are studied to estimate the magmatic conditions of the host rock, subsequently, to distinguish the type of granites and interpret the relationship between them, hence, to better understand the geology of south-cent

ral Chad area. The biotite from the collisional granites have higher Al and Ti content, and low iron number (Fe# = Fe2+/(Fe2++Mg) = 0.40-0.96). Their average magmatic temperature is 639 ± 73oC, and average pressure is 1.9 ± 0.1 kbars, and the average redox state -18.3 ± 3.1 that lies between the nic

kel-nickel oxide and quartz-fayalite-magnetite buffers. The biotites from the post-collisional granites are characterized by higher Fe# (≥0.7), and lower Al and Ti contents, as compared to collisional granites. All post-collisional biotites crystallized at lower temperatures (570 Ma = 620 ± 44oC, 56

0 Ma = 616 ± 31oC and 550 Ma = 613 ± 45oC). However, the Guéra granites are formed at pressures of 1.8 ± 0.1 kbars and 2.1 ± 0.1 kbars with the relative oxidation state transitioning from oxidizing to reducing environment (log fO2 = -19.5 ± 1.9 and -19.1 ± 1.6 for 570 Ma and 560 Ma, respectively) ar

ound the quartz-fayalite-magnetite buffers and wüstite-magnetite buffers. In contrast, the Lake Fitri post-collisional granites were emplaced at higher pressure (4.1 ± 0.1 kbars) and higher relative oxidation state, similar to the Guéra massif collisional granites (log fO2= -18.3 ± 3.1). Amphiboles

are more common in the post-collisional granites and are calcic with a low magnesian number (Mg#=Mg2+/(Mg2++Fe) ≤ 0.3) which is consistent with the lower oxidation state. It appears that the granites of the Guéra massif display distinct evolution from high to low in temperature, pressure, oxidation

state over time. Moreover, the Guéra post-collisional granites had very different magmatic conditions than the post-collisional granites of Lake Fitri, suggesting there may be a terrane boundary between the two exposures.

Bayou Baby

為了解決NORTH BAYOU的問題，作者Blake, Lexi 這樣論述：

A heartwarming contemporary romance set in Louisiana's Butterfly Bayou from New York Times bestselling author Lexi Blake. Seraphina Guidry loves Butterfly Bayou. A young, single mom, she's trying to find a place for herself in the town she cherishes, but past mistakes have made her wary. She adores

her son but has sworn off men. She's dedicated herself to restoring an historic house and building her own business. A quiet life is all she wants. Harrison Jefferys never expected to find himself in small-town Louisiana, but he has a job to do and a family to reconnect with. After years in the Arm

y, he's happy to spend time with his Aunt Celeste and his cousins in such an idyllic spot. When he meets Seraphina, he starts to think Papillion might be a great place to call home. But a secret from Sera's past rears its head and threatens to tear the community apart. Caught between the woman he's

coming to love and the only family he has left, Harry knows he has to follow his heart and with the help of the crazy, loving, meddling locals find a way to keep them both. Lexi Blake is the New York Times bestselling author of over seventy titles. She lives in North Texas with her family and two

of the most adorable rescue dogs ever. She’s a big city girl who married a small town boy and loves visiting his hometown. Except when the bears show up on the porch.

Timing and petrogenesis of collisional and post-collisional rocks of Guéra Massif, Republic of Chad

為了解決NORTH BAYOU的問題，作者范氏玉河 這樣論述：

The poorly-studied Saharan Metacraton of North-Central Africa is located between the Arabian-Nubian Shield in the east, the Tuareg Shield in the west and the Central African Orogenic Belt in the south. The Republic of Chad, constrained within the Saharan Metacraton, comprises a Phanerozoic cover ov

erlying Precambrian basement outcroppings in five distinct massifs: The Mayo Kebbi, Tibesti, Ouaddaï, Yadé and the Guéra. The Guéra Massif is the least studied of the five massifs but it likely preserves structures that were formed during the collision between Congo Craton and Saharan Metacraton. It

is composed of diverse igneous rock types including granites, rhyolites, and gabbros. The first zircon U/Pb geochronology of the silicic rocks from the Guéra Massif yielded three main age groups: ~590 Ma, ~570 Ma, ~560 Ma, while a single gabbro yielded an age of ~580 Ma.The ~590 Ma granites are met

aluminous to peraluminous, alkali calcic to calc-alkalic and magnesian in composition. They are similar to granitic rocks typical of cordilleran or volcanic-arc settings (collisional rocks). The younger (≤ 570 Ma) granites and rhyolite are peraluminous to metaluminous, alkali calcic to calc-alkalic

but ferroan and are similar in compositions to post-collisional granites (high K, calc-alkaline). Both magnesian and ferroan rocks show the enrichment in LREE with distinct negative Eu anomalies (Eu/Eu* = 0.04-0.88). The negative εNd(t) isotopes (εNd(t) = -14.5 to -0.2), variable ISr values (0.7037-

0.7176), low TZr (~700oC) and abundant inherited zircons indicate the granitic rocks are derived primarily from crustal sources.The ~580 Ma gabbro has a similar age and composition as a mafic, within-plate alkaline complex in West-Cameroon and matches the age of inherited zircons from different rock

types around Lake Chad and Lake Fitri suggesting that there was a regional magmatic event at that time despite the dearth of rocks. The major and trace element geochemistry of the gabbro is similar to alkaline within-plate basalt suggesting that it was derived from a garnet-bearing mantle source. T

he enriched Sr-Nd isotopes (ISr = 0.7056, εNd(t) = -4.6) with the lack of crustal contamination indicates that it may originate from an enriched mantle (EMII) reservoir.The geochronology and geochemical data indicate that there is a temporal evolution in the composition of rocks with the old, high ε

Nd(t), magnesian collisional granites shifting to young, low εNd(t), ferroan post-collisional granites. The results suggest that the granites in the Guéra Massif were probably derived by the repeated melting of a single crustal source region, from an initially ‘fertile’ source to a ‘less fertile’ so

urce at distinct intervals. The enriched isotopic composition of the Guéra Massif granites contrasts with the depleted compositions of the associated Neoproterozoic granites in southern Chad (Mayo Kebbi Massif, Lake Fitri inliers) indicates a thicker crustal root may exist under the Guéra Massif. Th

e emplacement of different rock types in the Guéra Massif marks the tectonic regime transition from subduction and collision to post-collision within a span of ~40 million years.